./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:01:06,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:01:06,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:01:07,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:01:07,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:01:07,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:01:07,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:01:07,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:01:07,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:01:07,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:01:07,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:01:07,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:01:07,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:01:07,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:01:07,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:01:07,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:01:07,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:01:07,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:01:07,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:01:07,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:01:07,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:01:07,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:01:07,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:01:07,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:01:07,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:01:07,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:01:07,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:01:07,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:01:07,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:01:07,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:01:07,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:01:07,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:01:07,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:01:07,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:01:07,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:01:07,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:01:07,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:01:07,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:01:07,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:01:07,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:01:07,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:01:07,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 21:01:07,117 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:01:07,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:01:07,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:01:07,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:01:07,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:01:07,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:01:07,123 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:01:07,123 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 21:01:07,124 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 21:01:07,124 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 21:01:07,125 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 21:01:07,125 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 21:01:07,125 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 21:01:07,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:01:07,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:01:07,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:01:07,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:01:07,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:01:07,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:01:07,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 21:01:07,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 21:01:07,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 21:01:07,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:01:07,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:01:07,128 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 21:01:07,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:01:07,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 21:01:07,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:01:07,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:01:07,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:01:07,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:01:07,131 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 21:01:07,132 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2022-11-02 21:01:07,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:01:07,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:01:07,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:01:07,451 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:01:07,452 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:01:07,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-02 21:01:07,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/data/2e174d52c/eb72ab4071454ada862bfb33653bba58/FLAGd9102c70b [2022-11-02 21:01:07,979 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:01:07,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-02 21:01:07,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/data/2e174d52c/eb72ab4071454ada862bfb33653bba58/FLAGd9102c70b [2022-11-02 21:01:08,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/data/2e174d52c/eb72ab4071454ada862bfb33653bba58 [2022-11-02 21:01:08,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:01:08,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:01:08,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:01:08,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:01:08,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:01:08,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35fee712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08, skipping insertion in model container [2022-11-02 21:01:08,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:01:08,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:01:08,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-02 21:01:08,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:01:08,703 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:01:08,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-02 21:01:08,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:01:08,754 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:01:08,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08 WrapperNode [2022-11-02 21:01:08,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:01:08,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:01:08,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:01:08,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:01:08,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,803 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 276 [2022-11-02 21:01:08,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:01:08,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:01:08,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:01:08,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:01:08,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:01:08,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:01:08,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:01:08,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:01:08,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (1/1) ... [2022-11-02 21:01:08,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:08,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:08,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:08,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 21:01:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:01:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:01:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:01:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:01:08,987 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:01:08,989 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:01:09,461 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:01:09,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:01:09,467 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-02 21:01:09,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:09 BoogieIcfgContainer [2022-11-02 21:01:09,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:01:09,470 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 21:01:09,470 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 21:01:09,480 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 21:01:09,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:01:09,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 09:01:08" (1/3) ... [2022-11-02 21:01:09,481 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bd03ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:01:09, skipping insertion in model container [2022-11-02 21:01:09,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:01:09,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:08" (2/3) ... [2022-11-02 21:01:09,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bd03ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:01:09, skipping insertion in model container [2022-11-02 21:01:09,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:01:09,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:09" (3/3) ... [2022-11-02 21:01:09,484 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2022-11-02 21:01:09,543 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 21:01:09,543 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 21:01:09,543 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 21:01:09,543 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 21:01:09,543 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 21:01:09,544 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 21:01:09,544 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 21:01:09,544 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 21:01:09,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:09,592 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-02 21:01:09,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:09,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:09,598 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 21:01:09,598 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:09,598 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 21:01:09,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:09,613 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-02 21:01:09,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:09,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:09,614 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 21:01:09,614 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:09,622 INFO L748 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 20#L29true assume !(0 == base2flt_~m#1 % 4294967296); 52#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 60#L57-2true [2022-11-02 21:01:09,622 INFO L750 eck$LassoCheckResult]: Loop: 60#L57-2true assume !false; 38#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 35#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 60#L57-2true [2022-11-02 21:01:09,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-02 21:01:09,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:09,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329042114] [2022-11-02 21:01:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:09,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:09,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:09,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329042114] [2022-11-02 21:01:09,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329042114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:09,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:09,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:01:09,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481187580] [2022-11-02 21:01:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:09,976 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 21:01:09,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-02 21:01:09,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:09,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144200807] [2022-11-02 21:01:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:09,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:10,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:10,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:10,096 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:10,097 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:10,097 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:10,097 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:10,097 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:10,097 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:10,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:10,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:10,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2022-11-02 21:01:10,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:10,098 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:10,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:10,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:10,261 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:10,262 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:10,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:10,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:10,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:10,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:10,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:10,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 21:01:10,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:10,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:10,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:10,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:10,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:10,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 21:01:10,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:10,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:10,402 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:10,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:10,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:10,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:10,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:10,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:10,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:10,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:10,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2022-11-02 21:01:10,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:10,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:10,405 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:10,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:10,556 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:10,561 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:10,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:10,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:10,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:10,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:10,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 21:01:10,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:10,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:10,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:10,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:10,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:10,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:10,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:10,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:10,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:10,625 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:10,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:10,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:10,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:10,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:10,655 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:10,656 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:10,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-02 21:01:10,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 21:01:10,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:10,697 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:10,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:10,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:10,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:10,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:10,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:10,860 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 21:01:10,864 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:10,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:10,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 204 states and 344 transitions. Complement of second has 6 states. [2022-11-02 21:01:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2022-11-02 21:01:11,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-02 21:01:11,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:11,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 21:01:11,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:11,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-02 21:01:11,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:11,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 344 transitions. [2022-11-02 21:01:11,018 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-02 21:01:11,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 79 states and 120 transitions. [2022-11-02 21:01:11,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2022-11-02 21:01:11,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2022-11-02 21:01:11,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 120 transitions. [2022-11-02 21:01:11,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:11,026 INFO L218 hiAutomatonCegarLoop]: Abstraction has 79 states and 120 transitions. [2022-11-02 21:01:11,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 120 transitions. [2022-11-02 21:01:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2022-11-02 21:01:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.588235294117647) internal successors, (108), 67 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2022-11-02 21:01:11,055 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 108 transitions. [2022-11-02 21:01:11,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:11,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:01:11,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:01:11,058 INFO L87 Difference]: Start difference. First operand 68 states and 108 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:11,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:11,137 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2022-11-02 21:01:11,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2022-11-02 21:01:11,138 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-02 21:01:11,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 48 transitions. [2022-11-02 21:01:11,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-02 21:01:11,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2022-11-02 21:01:11,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2022-11-02 21:01:11,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:11,140 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-02 21:01:11,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2022-11-02 21:01:11,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-02 21:01:11,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:11,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2022-11-02 21:01:11,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-02 21:01:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:01:11,144 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-02 21:01:11,144 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 21:01:11,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 48 transitions. [2022-11-02 21:01:11,145 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-02 21:01:11,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:11,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:11,146 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:11,146 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:11,146 INFO L748 eck$LassoCheckResult]: Stem: 451#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 425#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 426#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 454#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 430#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc 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; 431#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 432#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 433#L57-5 [2022-11-02 21:01:11,146 INFO L750 eck$LassoCheckResult]: Loop: 433#L57-5 assume !false; 435#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 436#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 433#L57-5 [2022-11-02 21:01:11,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:11,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2022-11-02 21:01:11,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:11,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066239209] [2022-11-02 21:01:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:11,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:11,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:11,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066239209] [2022-11-02 21:01:11,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066239209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:11,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:11,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:01:11,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347548143] [2022-11-02 21:01:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:11,222 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 21:01:11,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:11,223 INFO L85 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2022-11-02 21:01:11,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:11,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152880259] [2022-11-02 21:01:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:11,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:11,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:11,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:11,286 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:11,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:11,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:11,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:11,287 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:11,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:11,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:11,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2022-11-02 21:01:11,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:11,287 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:11,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:11,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:11,409 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:11,409 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:11,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:11,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:11,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:11,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:11,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 21:01:11,475 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:01:11,476 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:01:11,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:11,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:11,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:11,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 21:01:11,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:11,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:11,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:11,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:11,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:11,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 21:01:11,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:11,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:11,623 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:11,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:11,627 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:11,627 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:11,627 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:11,627 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:11,627 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:11,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:11,628 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:11,628 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2022-11-02 21:01:11,628 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:11,628 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:11,629 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:11,638 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:11,739 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:11,739 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:11,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:11,743 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:11,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:11,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 21:01:11,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:11,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:11,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:11,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:11,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:11,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:11,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:11,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:01:11,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:11,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:11,821 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:11,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:11,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 21:01:11,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:11,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:11,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:11,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:11,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:11,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:11,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:11,853 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:11,857 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:11,858 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:11,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:11,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:11,859 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:11,867 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:11,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:11,868 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:11,868 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-02 21:01:11,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 21:01:11,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:11,904 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:11,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:11,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:11,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:11,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:11,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:11,976 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 21:01:11,976 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,016 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 85 transitions. Complement of second has 5 states. [2022-11-02 21:01:12,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2022-11-02 21:01:12,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 21:01:12,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:12,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-02 21:01:12,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:12,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-02 21:01:12,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:12,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2022-11-02 21:01:12,026 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-02 21:01:12,027 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 60 states and 81 transitions. [2022-11-02 21:01:12,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-02 21:01:12,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-11-02 21:01:12,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2022-11-02 21:01:12,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:12,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 81 transitions. [2022-11-02 21:01:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2022-11-02 21:01:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2022-11-02 21:01:12,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.368421052631579) internal successors, (52), 37 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2022-11-02 21:01:12,033 INFO L240 hiAutomatonCegarLoop]: Abstraction has 38 states and 52 transitions. [2022-11-02 21:01:12,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:12,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:01:12,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:01:12,034 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:12,115 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-11-02 21:01:12,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2022-11-02 21:01:12,120 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-02 21:01:12,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 46 transitions. [2022-11-02 21:01:12,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2022-11-02 21:01:12,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2022-11-02 21:01:12,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2022-11-02 21:01:12,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:12,128 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2022-11-02 21:01:12,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2022-11-02 21:01:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2022-11-02 21:01:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-11-02 21:01:12,134 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-11-02 21:01:12,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:01:12,136 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-11-02 21:01:12,139 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 21:01:12,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2022-11-02 21:01:12,140 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-02 21:01:12,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:12,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:12,140 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:12,140 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:12,141 INFO L748 eck$LassoCheckResult]: Stem: 668#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 645#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 646#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 671#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 650#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc 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; 651#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 652#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 653#L47-3 [2022-11-02 21:01:12,141 INFO L750 eck$LassoCheckResult]: Loop: 653#L47-3 assume !false; 669#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 662#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 653#L47-3 [2022-11-02 21:01:12,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2022-11-02 21:01:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:12,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853801133] [2022-11-02 21:01:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:12,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:12,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2022-11-02 21:01:12,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:12,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937120879] [2022-11-02 21:01:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2022-11-02 21:01:12,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:12,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018893725] [2022-11-02 21:01:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:12,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:12,270 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:12,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:12,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:12,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:12,270 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:12,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:12,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:12,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:12,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2022-11-02 21:01:12,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:12,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:12,272 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:12,279 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:12,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:12,370 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:12,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:12,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:12,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:12,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:12,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:12,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 21:01:12,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:12,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:12,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:12,431 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:12,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 21:01:12,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:12,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:12,499 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:12,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:12,508 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:12,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:12,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:12,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:12,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:12,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:12,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:12,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:12,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2022-11-02 21:01:12,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:12,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:12,510 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:12,518 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:12,606 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:12,606 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:12,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:12,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:12,607 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:12,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:12,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:12,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:12,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:12,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:12,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:12,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:12,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:12,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 21:01:12,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:12,653 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:12,653 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:12,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:12,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:12,655 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:12,662 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:12,662 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:12,662 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:12,662 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-02 21:01:12,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 21:01:12,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:12,706 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:12,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:12,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:12,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:12,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:12,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:12,812 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:01:12,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,831 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 50 transitions. Complement of second has 5 states. [2022-11-02 21:01:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2022-11-02 21:01:12,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 21:01:12,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:12,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-02 21:01:12,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:12,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-02 21:01:12,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:12,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2022-11-02 21:01:12,838 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-02 21:01:12,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 46 transitions. [2022-11-02 21:01:12,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2022-11-02 21:01:12,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-11-02 21:01:12,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2022-11-02 21:01:12,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:12,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2022-11-02 21:01:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2022-11-02 21:01:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2022-11-02 21:01:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-11-02 21:01:12,849 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-11-02 21:01:12,849 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-11-02 21:01:12,849 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 21:01:12,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2022-11-02 21:01:12,850 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-02 21:01:12,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:12,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:12,850 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:12,850 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:12,852 INFO L748 eck$LassoCheckResult]: Stem: 791#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 766#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 767#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 795#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 771#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc 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; 772#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 773#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 774#L47-3 assume !false; 792#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 778#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 785#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_~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; 789#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 786#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 787#L57-8 [2022-11-02 21:01:12,852 INFO L750 eck$LassoCheckResult]: Loop: 787#L57-8 assume !false; 779#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 781#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 787#L57-8 [2022-11-02 21:01:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1421262134, now seen corresponding path program 1 times [2022-11-02 21:01:12,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:12,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351676019] [2022-11-02 21:01:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:12,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:12,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:12,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351676019] [2022-11-02 21:01:12,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351676019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:12,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:12,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:01:12,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862686750] [2022-11-02 21:01:12,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:12,961 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 21:01:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2022-11-02 21:01:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:12,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422545197] [2022-11-02 21:01:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:12,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:12,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:13,020 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:13,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:13,020 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:13,020 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:13,021 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:13,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:13,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:13,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2022-11-02 21:01:13,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:13,021 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:13,022 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:13,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:13,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:13,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:13,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:13,128 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:13,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 21:01:13,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:13,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:13,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:01:13,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:01:13,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:13,197 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:13,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:13,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:13,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 21:01:13,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:13,263 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:13,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 21:01:13,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:13,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:13,324 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:13,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,327 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:13,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:13,327 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:13,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:13,327 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:13,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:13,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:13,328 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2022-11-02 21:01:13,328 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:13,328 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:13,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:13,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:13,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:13,439 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:13,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:13,443 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:13,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:13,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:13,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:13,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:13,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:13,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:13,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:13,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:13,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 21:01:13,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:01:13,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:13,499 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:13,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 21:01:13,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:13,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:13,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:13,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:13,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:13,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:13,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:13,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:13,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:13,532 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:13,532 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:13,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:13,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:13,533 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:13,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 21:01:13,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:13,535 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:13,535 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:13,535 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-02 21:01:13,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,558 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:13,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:13,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:13,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:13,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:13,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:13,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:13,685 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 21:01:13,685 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:13,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,723 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 65 transitions. Complement of second has 5 states. [2022-11-02 21:01:13,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2022-11-02 21:01:13,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-02 21:01:13,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:13,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-02 21:01:13,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:13,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-02 21:01:13,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:13,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2022-11-02 21:01:13,733 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-02 21:01:13,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 61 transitions. [2022-11-02 21:01:13,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-02 21:01:13,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-02 21:01:13,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2022-11-02 21:01:13,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:13,734 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 61 transitions. [2022-11-02 21:01:13,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2022-11-02 21:01:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2022-11-02 21:01:13,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2022-11-02 21:01:13,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 38 states and 49 transitions. [2022-11-02 21:01:13,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:13,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:01:13,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:01:13,741 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:13,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:13,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:13,773 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-11-02 21:01:13,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2022-11-02 21:01:13,774 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-02 21:01:13,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 49 transitions. [2022-11-02 21:01:13,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-11-02 21:01:13,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-11-02 21:01:13,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2022-11-02 21:01:13,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:13,775 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-11-02 21:01:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2022-11-02 21:01:13,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-11-02 21:01:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2022-11-02 21:01:13,777 INFO L240 hiAutomatonCegarLoop]: Abstraction has 38 states and 48 transitions. [2022-11-02 21:01:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:01:13,783 INFO L428 stractBuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2022-11-02 21:01:13,784 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 21:01:13,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2022-11-02 21:01:13,784 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-02 21:01:13,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:13,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:13,785 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:13,785 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:13,785 INFO L748 eck$LassoCheckResult]: Stem: 1026#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 997#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 998#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1028#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1002#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc 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; 1003#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1004#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1005#L47-3 assume !false; 1025#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1015#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1008#L73-1 base2flt_~m#1 := (if 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216) then 0 else (if 1 == ~bitwiseComplement(16777216) then (if 1 == base2flt_~m#1 || 0 == base2flt_~m#1 then base2flt_~m#1 else (if base2flt_~m#1 >= 0 then base2flt_~m#1 % 2 else ~bitwiseAnd(base2flt_~m#1, ~bitwiseComplement(16777216)))) else (if 1 == base2flt_~m#1 then (if 1 == ~bitwiseComplement(16777216) || 0 == ~bitwiseComplement(16777216) then ~bitwiseComplement(16777216) else (if ~bitwiseComplement(16777216) >= 0 then ~bitwiseComplement(16777216) % 2 else ~bitwiseAnd(base2flt_~m#1, ~bitwiseComplement(16777216)))) else ~bitwiseAnd(base2flt_~m#1, ~bitwiseComplement(16777216)))));base2flt_~res~0#1 := (if (1 == base2flt_~m#1 || 0 == base2flt_~m#1) && 0 == 16777216 * (128 + base2flt_~e#1) then base2flt_~m#1 else (if 0 == base2flt_~m#1 && (1 == 16777216 * (128 + base2flt_~e#1) || 0 == 16777216 * (128 + base2flt_~e#1)) then 16777216 * (128 + base2flt_~e#1) else (if (1 == base2flt_~m#1 && (1 == 16777216 * (128 + base2flt_~e#1) || 0 == 16777216 * (128 + base2flt_~e#1))) || ((1 == base2flt_~m#1 || 0 == base2flt_~m#1) && 1 == 16777216 * (128 + base2flt_~e#1)) then 1 else ~bitwiseOr(base2flt_~m#1, 16777216 * (128 + base2flt_~e#1)))));base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1009#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1018#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_~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; 1022#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1019#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1021#L47-5 [2022-11-02 21:01:13,785 INFO L750 eck$LassoCheckResult]: Loop: 1021#L47-5 assume !false; 1023#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1030#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1021#L47-5 [2022-11-02 21:01:13,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:13,786 INFO L85 PathProgramCache]: Analyzing trace with hash 793003697, now seen corresponding path program 1 times [2022-11-02 21:01:13,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:13,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68497370] [2022-11-02 21:01:13,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:13,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:13,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:13,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68497370] [2022-11-02 21:01:13,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68497370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:13,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:13,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:01:13,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612645506] [2022-11-02 21:01:13,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:13,966 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 21:01:13,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:13,966 INFO L85 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2022-11-02 21:01:13,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:13,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757782730] [2022-11-02 21:01:13,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:13,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:13,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:13,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:14,000 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:14,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:14,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:14,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:14,001 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:14,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:14,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:14,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2022-11-02 21:01:14,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:14,001 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:14,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:14,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:14,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:14,075 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:14,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,079 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:14,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:14,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 21:01:14,148 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:01:14,149 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:01:14,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:14,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,156 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:14,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:14,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 21:01:14,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-02 21:01:14,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,196 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 21:01:14,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:14,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:14,234 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:14,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-02 21:01:14,237 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:14,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:14,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:14,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:14,237 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:14,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:14,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:14,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2022-11-02 21:01:14,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:14,237 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:14,239 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:14,245 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:14,309 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:14,310 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:14,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,312 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 21:01:14,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:14,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:14,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:14,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:14,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:14,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:14,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:14,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:14,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:01:14,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:14,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,375 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:14,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:14,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:14,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:14,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:14,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:14,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:14,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:14,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 21:01:14,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:14,420 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:14,420 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:14,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,424 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,427 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:14,427 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:14,427 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:14,427 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-02 21:01:14,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 21:01:14,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:14,466 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:14,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:14,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:14,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:14,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:14,549 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:01:14,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:14,569 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 69 transitions. Complement of second has 5 states. [2022-11-02 21:01:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2022-11-02 21:01:14,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 3 letters. [2022-11-02 21:01:14,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:14,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 18 letters. Loop has 3 letters. [2022-11-02 21:01:14,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:14,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 6 letters. [2022-11-02 21:01:14,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:14,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 69 transitions. [2022-11-02 21:01:14,577 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-02 21:01:14,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 65 transitions. [2022-11-02 21:01:14,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2022-11-02 21:01:14,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-11-02 21:01:14,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 65 transitions. [2022-11-02 21:01:14,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:14,581 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-11-02 21:01:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 65 transitions. [2022-11-02 21:01:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2022-11-02 21:01:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-11-02 21:01:14,583 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-11-02 21:01:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:14,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:01:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:01:14,584 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:14,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:14,652 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2022-11-02 21:01:14,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 61 transitions. [2022-11-02 21:01:14,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-02 21:01:14,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 61 transitions. [2022-11-02 21:01:14,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2022-11-02 21:01:14,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2022-11-02 21:01:14,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2022-11-02 21:01:14,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:14,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 61 transitions. [2022-11-02 21:01:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2022-11-02 21:01:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-11-02 21:01:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-11-02 21:01:14,657 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-02 21:01:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:01:14,658 INFO L428 stractBuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-02 21:01:14,658 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 21:01:14,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2022-11-02 21:01:14,659 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-02 21:01:14,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:14,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:14,660 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:14,660 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:14,666 INFO L748 eck$LassoCheckResult]: Stem: 1285#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1255#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 1256#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1289#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1260#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc 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; 1261#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1262#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1263#L47-3 assume !false; 1287#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1273#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1274#L47-3 assume !false; 1286#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1267#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1276#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_~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; 1280#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1251#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1252#L80-2 main_#t~ret10#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret10#1;havoc main_#t~ret10#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_~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; 1288#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1257#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1258#L57-11 [2022-11-02 21:01:14,666 INFO L750 eck$LassoCheckResult]: Loop: 1258#L57-11 assume !false; 1264#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1265#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1258#L57-11 [2022-11-02 21:01:14,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:14,666 INFO L85 PathProgramCache]: Analyzing trace with hash -399436914, now seen corresponding path program 1 times [2022-11-02 21:01:14,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:14,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493541235] [2022-11-02 21:01:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:14,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:14,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493541235] [2022-11-02 21:01:14,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493541235] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:01:14,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156523230] [2022-11-02 21:01:14,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:14,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:01:14,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:14,729 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:01:14,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-02 21:01:14,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-02 21:01:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:14,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:14,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:14,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:01:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:14,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156523230] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:01:14,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:01:14,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-02 21:01:14,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871043526] [2022-11-02 21:01:14,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:01:14,887 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 21:01:14,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:14,888 INFO L85 PathProgramCache]: Analyzing trace with hash 262289, now seen corresponding path program 1 times [2022-11-02 21:01:14,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:14,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004376723] [2022-11-02 21:01:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:14,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:14,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:14,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:14,933 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:14,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:14,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:14,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:14,934 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:14,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:14,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:14,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:14,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2022-11-02 21:01:14,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:14,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:14,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:14,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:15,044 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:15,044 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:15,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,047 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:15,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:15,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-02 21:01:15,093 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:01:15,094 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:01:15,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:15,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,097 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-02 21:01:15,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:15,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:15,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-02 21:01:15,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,137 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-02 21:01:15,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:15,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:15,175 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:15,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:15,178 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:15,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:15,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:15,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:15,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:15,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:15,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:15,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2022-11-02 21:01:15,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:15,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:15,180 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:15,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:15,282 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:15,282 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:15,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,283 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:15,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:15,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:15,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:15,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:15,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:15,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:15,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:15,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-02 21:01:15,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:01:15,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-02 21:01:15,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,347 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-02 21:01:15,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:15,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:15,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:15,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:15,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:15,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:15,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:15,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:15,361 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:15,363 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:15,364 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:15,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,367 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-02 21:01:15,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:15,368 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:15,368 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:15,368 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-02 21:01:15,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:15,390 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:15,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:15,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:15,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:15,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:15,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:15,466 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 21:01:15,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:15,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 59 transitions. Complement of second has 4 states. [2022-11-02 21:01:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2022-11-02 21:01:15,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-02 21:01:15,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:15,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 22 letters. Loop has 3 letters. [2022-11-02 21:01:15,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:15,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 6 letters. [2022-11-02 21:01:15,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:15,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2022-11-02 21:01:15,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:01:15,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 40 states and 51 transitions. [2022-11-02 21:01:15,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-11-02 21:01:15,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-11-02 21:01:15,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2022-11-02 21:01:15,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:15,480 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-11-02 21:01:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2022-11-02 21:01:15,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-02 21:01:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-11-02 21:01:15,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-11-02 21:01:15,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:15,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:01:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:01:15,483 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:15,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:15,519 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2022-11-02 21:01:15,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 74 transitions. [2022-11-02 21:01:15,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:01:15,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 56 states and 68 transitions. [2022-11-02 21:01:15,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2022-11-02 21:01:15,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-11-02 21:01:15,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 68 transitions. [2022-11-02 21:01:15,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:01:15,521 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 68 transitions. [2022-11-02 21:01:15,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 68 transitions. [2022-11-02 21:01:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2022-11-02 21:01:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-02 21:01:15,523 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-02 21:01:15,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:01:15,525 INFO L428 stractBuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-02 21:01:15,525 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-02 21:01:15,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 58 transitions. [2022-11-02 21:01:15,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 21:01:15,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:01:15,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:01:15,527 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:15,527 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 21:01:15,527 INFO L748 eck$LassoCheckResult]: Stem: 1667#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1641#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#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_~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; 1642#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1671#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1645#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc 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; 1646#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1647#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1648#L47-3 assume !false; 1669#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1656#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1657#L47-3 assume !false; 1674#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1682#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1649#L73-1 base2flt_~m#1 := (if 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216) then 0 else (if 1 == ~bitwiseComplement(16777216) then (if 1 == base2flt_~m#1 || 0 == base2flt_~m#1 then base2flt_~m#1 else (if base2flt_~m#1 >= 0 then base2flt_~m#1 % 2 else ~bitwiseAnd(base2flt_~m#1, ~bitwiseComplement(16777216)))) else (if 1 == base2flt_~m#1 then (if 1 == ~bitwiseComplement(16777216) || 0 == ~bitwiseComplement(16777216) then ~bitwiseComplement(16777216) else (if ~bitwiseComplement(16777216) >= 0 then ~bitwiseComplement(16777216) % 2 else ~bitwiseAnd(base2flt_~m#1, ~bitwiseComplement(16777216)))) else ~bitwiseAnd(base2flt_~m#1, ~bitwiseComplement(16777216)))));base2flt_~res~0#1 := (if (1 == base2flt_~m#1 || 0 == base2flt_~m#1) && 0 == 16777216 * (128 + base2flt_~e#1) then base2flt_~m#1 else (if 0 == base2flt_~m#1 && (1 == 16777216 * (128 + base2flt_~e#1) || 0 == 16777216 * (128 + base2flt_~e#1)) then 16777216 * (128 + base2flt_~e#1) else (if (1 == base2flt_~m#1 && (1 == 16777216 * (128 + base2flt_~e#1) || 0 == 16777216 * (128 + base2flt_~e#1))) || ((1 == base2flt_~m#1 || 0 == base2flt_~m#1) && 1 == 16777216 * (128 + base2flt_~e#1)) then 1 else ~bitwiseOr(base2flt_~m#1, 16777216 * (128 + base2flt_~e#1)))));base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1650#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1658#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#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_~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; 1662#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1637#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1638#L80-2 main_#t~ret10#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret10#1;havoc main_#t~ret10#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_~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; 1670#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1643#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 1644#L47-7 [2022-11-02 21:01:15,527 INFO L750 eck$LassoCheckResult]: Loop: 1644#L47-7 assume !false; 1639#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1640#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 1644#L47-7 [2022-11-02 21:01:15,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:15,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1485728147, now seen corresponding path program 1 times [2022-11-02 21:01:15,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:15,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225480711] [2022-11-02 21:01:15,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:15,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:15,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225480711] [2022-11-02 21:01:15,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225480711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:01:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424194307] [2022-11-02 21:01:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:15,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:01:15,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,626 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:01:15,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-02 21:01:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:15,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:01:15,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:15,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:15,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:01:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:15,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424194307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:01:15,880 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:01:15,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-02 21:01:15,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779684880] [2022-11-02 21:01:15,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:01:15,880 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 21:01:15,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:15,881 INFO L85 PathProgramCache]: Analyzing trace with hash 236530, now seen corresponding path program 1 times [2022-11-02 21:01:15,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:15,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550006383] [2022-11-02 21:01:15,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:15,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:15,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:15,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:15,920 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:15,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:15,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:15,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:15,920 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 21:01:15,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:15,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:15,921 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2022-11-02 21:01:15,921 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:15,921 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:15,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:15,929 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:15,994 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:15,994 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 21:01:15,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:15,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:15,997 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:16,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:16,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:16,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-02 21:01:16,069 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 21:01:16,070 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 21:01:16,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:16,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:16,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:16,076 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:16,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 21:01:16,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:16,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-02 21:01:16,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-11-02 21:01:16,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:16,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:16,114 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:16,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-02 21:01:16,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 21:01:16,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 21:01:16,183 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 21:01:16,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:16,191 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:01:16,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:01:16,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:01:16,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:01:16,191 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:01:16,191 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:16,191 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:01:16,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:01:16,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2022-11-02 21:01:16,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:01:16,192 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:01:16,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:16,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:01:16,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:01:16,274 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:01:16,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:16,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:16,279 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:16,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:16,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-02 21:01:16,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:16,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:16,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:16,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:16,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:16,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:16,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:16,303 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:01:16,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:16,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:16,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:16,335 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:16,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-02 21:01:16,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:01:16,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:01:16,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:01:16,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:01:16,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:01:16,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:01:16,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:01:16,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:01:16,350 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:01:16,352 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:01:16,352 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:01:16,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:01:16,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:16,355 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:16,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-02 21:01:16,359 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:01:16,359 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:01:16,359 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:01:16,359 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-02 21:01:16,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:16,381 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 21:01:16,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:16,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:01:16,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:16,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:01:16,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:16,479 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:01:16,480 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 58 transitions. cyclomatic complexity: 16 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) [2022-11-02 21:01:16,489 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 58 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 62 transitions. Complement of second has 4 states. [2022-11-02 21:01:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 21:01:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-11-02 21:01:16,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 3 letters. [2022-11-02 21:01:16,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:16,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 24 letters. Loop has 3 letters. [2022-11-02 21:01:16,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:16,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 6 letters. [2022-11-02 21:01:16,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:01:16,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2022-11-02 21:01:16,492 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:01:16,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 0 states and 0 transitions. [2022-11-02 21:01:16,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 21:01:16,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 21:01:16,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 21:01:16,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:16,492 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:01:16,492 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:01:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:01:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:01:16,493 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:01:16,494 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-02 21:01:16,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-02 21:01:16,494 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:01:16,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 21:01:16,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 21:01:16,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 21:01:16,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 21:01:16,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:16,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:01:16,494 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:01:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:01:16,495 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:01:16,495 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-02 21:01:16,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 21:01:16,495 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:01:16,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 21:01:16,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 09:01:16 BoogieIcfgContainer [2022-11-02 21:01:16,503 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 21:01:16,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:01:16,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:01:16,503 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:01:16,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:09" (3/4) ... [2022-11-02 21:01:16,507 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:01:16,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:01:16,507 INFO L158 Benchmark]: Toolchain (without parser) took 8136.90ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 57.1MB in the beginning and 60.9MB in the end (delta: -3.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2022-11-02 21:01:16,508 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:01:16,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.07ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 66.1MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:01:16,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.30ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 63.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:16,508 INFO L158 Benchmark]: Boogie Preprocessor took 34.51ms. Allocated memory is still 92.3MB. Free memory was 63.2MB in the beginning and 61.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:16,509 INFO L158 Benchmark]: RCFGBuilder took 629.31ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 39.3MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 21:01:16,509 INFO L158 Benchmark]: BuchiAutomizer took 7032.54ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 39.0MB in the beginning and 60.9MB in the end (delta: -21.9MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-11-02 21:01:16,509 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 123.7MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:01:16,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.07ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 66.1MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.30ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 63.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.51ms. Allocated memory is still 92.3MB. Free memory was 63.2MB in the beginning and 61.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 629.31ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 39.3MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 7032.54ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 39.0MB in the beginning and 60.9MB in the end (delta: -21.9MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 123.7MB. Free memory is still 60.9MB. 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 + 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. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 78 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, 365 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 666 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 144 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196 IncrementalHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 522 mSDtfsCounter, 196 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div561 bol100 ite100 ukn100 eq132 hnf96 smp42 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 92ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 21:01:16,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:16,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-11-02 21:01:16,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:17,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_536b0693-0fc6-4a6c-b1a0-76af921a2084/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE