./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dfc9f1e1cbceb1807370dcac22a0449d857eff9a54bdefbc84178983a910e84 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:45:20,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:45:20,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:45:20,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:45:20,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:45:20,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:45:20,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:45:20,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:45:20,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:45:20,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:45:20,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:45:20,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:45:20,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:45:20,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:45:20,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:45:20,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:45:20,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:45:20,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:45:20,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:45:20,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:45:20,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:45:20,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:45:20,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:45:20,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:45:20,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:45:20,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:45:20,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:45:20,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:45:20,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:45:20,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:45:20,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:45:20,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:45:20,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:45:20,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:45:20,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:45:20,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:45:20,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:45:20,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:45:20,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:45:20,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:45:20,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:45:20,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:45:20,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:45:20,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:45:20,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:45:20,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:45:20,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:45:20,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:45:20,958 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:45:20,958 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:45:20,958 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:45:20,958 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:45:20,960 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:45:20,960 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:45:20,960 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:45:20,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:45:20,961 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:45:20,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:45:20,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:45:20,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:45:20,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:45:20,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:45:20,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:45:20,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:45:20,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:45:20,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:45:20,965 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:45:20,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:45:20,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:45:20,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:45:20,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:45:20,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:45:20,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:45:20,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:45:20,968 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_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dfc9f1e1cbceb1807370dcac22a0449d857eff9a54bdefbc84178983a910e84 [2022-10-17 10:45:21,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:45:21,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:45:21,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:45:21,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:45:21,309 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:45:21,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/bitvector/byte_add-1.i [2022-10-17 10:45:21,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/data/80a89d560/b91d02c6fab840bfbe7aeb980413576f/FLAG89a7fffc1 [2022-10-17 10:45:21,915 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:45:21,915 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/sv-benchmarks/c/bitvector/byte_add-1.i [2022-10-17 10:45:21,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/data/80a89d560/b91d02c6fab840bfbe7aeb980413576f/FLAG89a7fffc1 [2022-10-17 10:45:22,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/data/80a89d560/b91d02c6fab840bfbe7aeb980413576f [2022-10-17 10:45:22,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:45:22,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:45:22,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:45:22,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:45:22,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:45:22,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129c9493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22, skipping insertion in model container [2022-10-17 10:45:22,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:45:22,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:45:22,540 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_4873b1ab-d32e-4c84-bcc2-38a670605f9b/sv-benchmarks/c/bitvector/byte_add-1.i[1166,1179] [2022-10-17 10:45:22,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:45:22,603 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:45:22,618 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_4873b1ab-d32e-4c84-bcc2-38a670605f9b/sv-benchmarks/c/bitvector/byte_add-1.i[1166,1179] [2022-10-17 10:45:22,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:45:22,661 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:45:22,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22 WrapperNode [2022-10-17 10:45:22,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:45:22,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:45:22,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:45:22,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:45:22,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,738 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 146 [2022-10-17 10:45:22,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:45:22,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:45:22,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:45:22,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:45:22,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,824 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:45:22,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:45:22,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:45:22,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:45:22,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (1/1) ... [2022-10-17 10:45:22,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:22,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:22,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:22,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:45:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:45:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:45:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:45:22,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:45:23,033 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:45:23,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:45:23,985 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:45:23,993 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:45:23,993 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:45:23,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:23 BoogieIcfgContainer [2022-10-17 10:45:23,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:45:23,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:45:23,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:45:24,002 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:45:24,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:45:24,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:45:22" (1/3) ... [2022-10-17 10:45:24,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b6bfd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:45:24, skipping insertion in model container [2022-10-17 10:45:24,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:45:24,005 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:22" (2/3) ... [2022-10-17 10:45:24,005 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b6bfd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:45:24, skipping insertion in model container [2022-10-17 10:45:24,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:45:24,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:23" (3/3) ... [2022-10-17 10:45:24,007 INFO L332 chiAutomizerObserver]: Analyzing ICFG byte_add-1.i [2022-10-17 10:45:24,073 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:45:24,073 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:45:24,073 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:45:24,073 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:45:24,073 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:45:24,074 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:45:24,074 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:45:24,074 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:45:24,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 50 states, 49 states have (on average 1.7755102040816326) internal successors, (87), 49 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:24,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-10-17 10:45:24,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:24,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:24,114 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:45:24,114 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:24,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:45:24,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 50 states, 49 states have (on average 1.7755102040816326) internal successors, (87), 49 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:24,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-10-17 10:45:24,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:24,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:24,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:45:24,122 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:24,131 INFO L748 eck$LassoCheckResult]: Stem: 41#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(13, 2); 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 29#L59true assume !(0 == mp_add_~a3~0#1 % 256); 11#L59-1true mp_add_~nb~0#1 := 4; 12#L69true assume !(0 == mp_add_~b3~0#1 % 256); 48#L69-1true mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 14#L80-2true [2022-10-17 10:45:24,132 INFO L750 eck$LassoCheckResult]: Loop: 14#L80-2true assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21#L83true assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 50#L83-1true assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6#L89true assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 28#L95-1true assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 38#L99-1true assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 8#L100-1true assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 15#L101-1true assume !(3 == mp_add_~i~0#1 % 256); 16#L102-1true mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14#L80-2true [2022-10-17 10:45:24,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2022-10-17 10:45:24,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:24,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690503344] [2022-10-17 10:45:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:24,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:24,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:24,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1026291578, now seen corresponding path program 1 times [2022-10-17 10:45:24,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:24,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131786710] [2022-10-17 10:45:24,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:24,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:24,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131786710] [2022-10-17 10:45:24,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131786710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:24,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:24,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:45:24,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394747116] [2022-10-17 10:45:24,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:24,597 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:24,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:24,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:45:24,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:45:24,639 INFO L87 Difference]: Start difference. First operand has 50 states, 49 states have (on average 1.7755102040816326) internal successors, (87), 49 states have internal predecessors, (87), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:24,948 INFO L93 Difference]: Finished difference Result 78 states and 114 transitions. [2022-10-17 10:45:24,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 114 transitions. [2022-10-17 10:45:24,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2022-10-17 10:45:24,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 66 states and 98 transitions. [2022-10-17 10:45:24,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2022-10-17 10:45:24,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2022-10-17 10:45:24,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2022-10-17 10:45:24,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:24,974 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2022-10-17 10:45:24,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2022-10-17 10:45:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2022-10-17 10:45:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 64 states have (on average 1.5) internal successors, (96), 63 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 96 transitions. [2022-10-17 10:45:25,034 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 96 transitions. [2022-10-17 10:45:25,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:45:25,044 INFO L428 stractBuchiCegarLoop]: Abstraction has 64 states and 96 transitions. [2022-10-17 10:45:25,044 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:45:25,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 96 transitions. [2022-10-17 10:45:25,053 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-10-17 10:45:25,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:25,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:25,054 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:25,054 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:25,055 INFO L748 eck$LassoCheckResult]: Stem: 163#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(13, 2); 152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 139#L59 assume !(0 == mp_add_~a3~0#1 % 256); 140#L59-1 mp_add_~nb~0#1 := 4; 159#L69 assume !(0 == mp_add_~b3~0#1 % 256); 149#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 165#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 166#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 194#L83-1 [2022-10-17 10:45:25,055 INFO L750 eck$LassoCheckResult]: Loop: 194#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 138#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 144#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 181#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 184#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 172#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 173#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 174#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 179#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 180#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 162#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 168#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 169#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 194#L83-1 [2022-10-17 10:45:25,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2022-10-17 10:45:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:25,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100885565] [2022-10-17 10:45:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:25,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:25,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:25,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100885565] [2022-10-17 10:45:25,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100885565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:25,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:25,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:25,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899187297] [2022-10-17 10:45:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:25,506 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:45:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash 758648136, now seen corresponding path program 1 times [2022-10-17 10:45:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:25,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902864626] [2022-10-17 10:45:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:25,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:25,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902864626] [2022-10-17 10:45:25,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902864626] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:25,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:25,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:25,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225475688] [2022-10-17 10:45:25,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:25,650 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:25,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:25,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:25,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:25,652 INFO L87 Difference]: Start difference. First operand 64 states and 96 transitions. cyclomatic complexity: 34 Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:26,343 INFO L93 Difference]: Finished difference Result 222 states and 310 transitions. [2022-10-17 10:45:26,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 310 transitions. [2022-10-17 10:45:26,350 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 147 [2022-10-17 10:45:26,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 222 states and 310 transitions. [2022-10-17 10:45:26,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 222 [2022-10-17 10:45:26,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 222 [2022-10-17 10:45:26,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 222 states and 310 transitions. [2022-10-17 10:45:26,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:26,364 INFO L218 hiAutomatonCegarLoop]: Abstraction has 222 states and 310 transitions. [2022-10-17 10:45:26,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states and 310 transitions. [2022-10-17 10:45:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 79. [2022-10-17 10:45:26,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 78 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:26,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 114 transitions. [2022-10-17 10:45:26,388 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 114 transitions. [2022-10-17 10:45:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:45:26,394 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 114 transitions. [2022-10-17 10:45:26,394 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:45:26,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 114 transitions. [2022-10-17 10:45:26,400 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-10-17 10:45:26,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:26,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:26,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:26,402 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:26,403 INFO L748 eck$LassoCheckResult]: Stem: 470#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(13, 2); 458#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 442#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 444#L61 assume !(0 == mp_add_~a2~0#1 % 256); 445#L59-1 mp_add_~nb~0#1 := 4; 495#L69 assume !(0 == mp_add_~b3~0#1 % 256); 490#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 491#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 496#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 460#L83-1 [2022-10-17 10:45:26,403 INFO L750 eck$LassoCheckResult]: Loop: 460#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 447#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 449#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 466#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 455#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 456#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 477#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 480#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 489#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 512#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 469#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 474#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 459#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 460#L83-1 [2022-10-17 10:45:26,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2022-10-17 10:45:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:26,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918280830] [2022-10-17 10:45:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:26,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:26,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:26,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918280830] [2022-10-17 10:45:26,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918280830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:26,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:26,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:45:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801084897] [2022-10-17 10:45:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:26,697 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:45:26,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:26,698 INFO L85 PathProgramCache]: Analyzing trace with hash 758648136, now seen corresponding path program 2 times [2022-10-17 10:45:26,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:26,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929352720] [2022-10-17 10:45:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:26,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:26,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:26,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929352720] [2022-10-17 10:45:26,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929352720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:26,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:26,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:26,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767756419] [2022-10-17 10:45:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:26,869 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:26,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:26,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:45:26,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:45:26,871 INFO L87 Difference]: Start difference. First operand 79 states and 114 transitions. cyclomatic complexity: 37 Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:27,984 INFO L93 Difference]: Finished difference Result 387 states and 549 transitions. [2022-10-17 10:45:27,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 387 states and 549 transitions. [2022-10-17 10:45:27,990 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 279 [2022-10-17 10:45:27,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 387 states to 387 states and 549 transitions. [2022-10-17 10:45:27,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 387 [2022-10-17 10:45:27,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 387 [2022-10-17 10:45:27,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 387 states and 549 transitions. [2022-10-17 10:45:28,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:28,001 INFO L218 hiAutomatonCegarLoop]: Abstraction has 387 states and 549 transitions. [2022-10-17 10:45:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states and 549 transitions. [2022-10-17 10:45:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 184. [2022-10-17 10:45:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.4076086956521738) internal successors, (259), 183 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:28,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 259 transitions. [2022-10-17 10:45:28,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 184 states and 259 transitions. [2022-10-17 10:45:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:45:28,021 INFO L428 stractBuchiCegarLoop]: Abstraction has 184 states and 259 transitions. [2022-10-17 10:45:28,021 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:45:28,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 259 transitions. [2022-10-17 10:45:28,024 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 113 [2022-10-17 10:45:28,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:28,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:28,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:28,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:28,025 INFO L748 eck$LassoCheckResult]: Stem: 967#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(13, 2); 952#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 934#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 936#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 938#L63 assume !(0 == mp_add_~a1~0#1 % 256); 939#L59-1 mp_add_~nb~0#1 := 4; 992#L69 assume !(0 == mp_add_~b3~0#1 % 256); 988#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 989#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1028#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1051#L83-1 [2022-10-17 10:45:28,025 INFO L750 eck$LassoCheckResult]: Loop: 1051#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1048#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 1043#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1039#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1037#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1033#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 986#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 987#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1030#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1058#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 1056#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1055#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1053#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1051#L83-1 [2022-10-17 10:45:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2089936051, now seen corresponding path program 1 times [2022-10-17 10:45:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:28,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356339357] [2022-10-17 10:45:28,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:28,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:28,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:28,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356339357] [2022-10-17 10:45:28,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356339357] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:28,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:28,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:45:28,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245302659] [2022-10-17 10:45:28,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:28,256 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:45:28,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:28,257 INFO L85 PathProgramCache]: Analyzing trace with hash 758648136, now seen corresponding path program 3 times [2022-10-17 10:45:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:28,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640547293] [2022-10-17 10:45:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:28,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:28,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:28,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640547293] [2022-10-17 10:45:28,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640547293] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:28,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:28,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815947910] [2022-10-17 10:45:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:28,334 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:28,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:28,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:45:28,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:45:28,335 INFO L87 Difference]: Start difference. First operand 184 states and 259 transitions. cyclomatic complexity: 79 Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:29,926 INFO L93 Difference]: Finished difference Result 482 states and 675 transitions. [2022-10-17 10:45:29,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 482 states and 675 transitions. [2022-10-17 10:45:29,933 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 345 [2022-10-17 10:45:29,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 482 states to 482 states and 675 transitions. [2022-10-17 10:45:29,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 482 [2022-10-17 10:45:29,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 482 [2022-10-17 10:45:29,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 482 states and 675 transitions. [2022-10-17 10:45:29,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:29,942 INFO L218 hiAutomatonCegarLoop]: Abstraction has 482 states and 675 transitions. [2022-10-17 10:45:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states and 675 transitions. [2022-10-17 10:45:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 270. [2022-10-17 10:45:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 1.4037037037037037) internal successors, (379), 269 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 379 transitions. [2022-10-17 10:45:29,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 270 states and 379 transitions. [2022-10-17 10:45:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:45:29,965 INFO L428 stractBuchiCegarLoop]: Abstraction has 270 states and 379 transitions. [2022-10-17 10:45:29,965 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:45:29,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 379 transitions. [2022-10-17 10:45:29,968 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 175 [2022-10-17 10:45:29,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:29,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:29,969 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:29,969 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:29,969 INFO L748 eck$LassoCheckResult]: Stem: 1665#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(13, 2); 1650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 1631#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 1633#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 1635#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 1636#L59-1 mp_add_~nb~0#1 := 4; 1693#L69 assume !(0 == mp_add_~b3~0#1 % 256); 1689#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1690#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1817#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1850#L83-1 [2022-10-17 10:45:29,970 INFO L750 eck$LassoCheckResult]: Loop: 1850#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1847#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 1827#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1826#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1825#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1822#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1818#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1815#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1816#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1859#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 1856#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1855#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1853#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1850#L83-1 [2022-10-17 10:45:29,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2147194353, now seen corresponding path program 1 times [2022-10-17 10:45:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:29,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625998246] [2022-10-17 10:45:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:30,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625998246] [2022-10-17 10:45:30,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625998246] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:30,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:30,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:45:30,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046330646] [2022-10-17 10:45:30,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:30,195 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:45:30,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:30,196 INFO L85 PathProgramCache]: Analyzing trace with hash 758648136, now seen corresponding path program 4 times [2022-10-17 10:45:30,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:30,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533471472] [2022-10-17 10:45:30,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:30,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:30,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533471472] [2022-10-17 10:45:30,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533471472] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:30,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:30,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242962778] [2022-10-17 10:45:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:30,308 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:30,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:30,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:45:30,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:45:30,311 INFO L87 Difference]: Start difference. First operand 270 states and 379 transitions. cyclomatic complexity: 115 Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:31,590 INFO L93 Difference]: Finished difference Result 370 states and 514 transitions. [2022-10-17 10:45:31,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 370 states and 514 transitions. [2022-10-17 10:45:31,595 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 243 [2022-10-17 10:45:31,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 370 states to 370 states and 514 transitions. [2022-10-17 10:45:31,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 370 [2022-10-17 10:45:31,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 370 [2022-10-17 10:45:31,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 370 states and 514 transitions. [2022-10-17 10:45:31,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:31,602 INFO L218 hiAutomatonCegarLoop]: Abstraction has 370 states and 514 transitions. [2022-10-17 10:45:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states and 514 transitions. [2022-10-17 10:45:31,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 304. [2022-10-17 10:45:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 304 states have (on average 1.4046052631578947) internal successors, (427), 303 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 427 transitions. [2022-10-17 10:45:31,616 INFO L240 hiAutomatonCegarLoop]: Abstraction has 304 states and 427 transitions. [2022-10-17 10:45:31,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:45:31,618 INFO L428 stractBuchiCegarLoop]: Abstraction has 304 states and 427 transitions. [2022-10-17 10:45:31,618 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:45:31,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states and 427 transitions. [2022-10-17 10:45:31,621 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 212 [2022-10-17 10:45:31,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:31,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:31,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:31,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:31,623 INFO L748 eck$LassoCheckResult]: Stem: 2331#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(13, 2); 2318#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 2305#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 2307#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 2309#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 2310#L59-1 mp_add_~nb~0#1 := 4; 2327#L69 assume !(0 == mp_add_~b3~0#1 % 256); 2315#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 2346#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 2345#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2328#L84 [2022-10-17 10:45:31,624 INFO L750 eck$LassoCheckResult]: Loop: 2328#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 2329#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2334#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2319#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2320#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2300#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 2302#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 2326#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 2312#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 2313#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 2338#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 2349#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 2556#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2328#L84 [2022-10-17 10:45:31,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:31,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 1 times [2022-10-17 10:45:31,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:31,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630476663] [2022-10-17 10:45:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:31,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:31,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:31,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:31,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:31,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1738393452, now seen corresponding path program 5 times [2022-10-17 10:45:31,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:31,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150711020] [2022-10-17 10:45:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:31,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:31,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:31,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:31,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:31,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1295002104, now seen corresponding path program 1 times [2022-10-17 10:45:31,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:31,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216341604] [2022-10-17 10:45:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:31,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:31,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:31,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216341604] [2022-10-17 10:45:31,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216341604] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:31,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:31,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:31,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014716513] [2022-10-17 10:45:31,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:32,041 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:32,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:32,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:32,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:32,042 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:45:32,043 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:32,043 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:32,043 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:32,043 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration6_Loop [2022-10-17 10:45:32,043 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:32,044 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:32,065 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:32,087 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:32,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:32,445 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:45:32,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:32,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:32,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:32,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:45:32,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:32,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:32,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-10-17 10:45:32,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:32,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:32,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:32,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:45:32,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:32,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:33,468 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:45:33,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-10-17 10:45:33,475 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:33,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:33,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:33,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:33,476 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:45:33,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:33,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:33,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:33,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration6_Loop [2022-10-17 10:45:33,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:33,476 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:33,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:33,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:33,860 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:33,869 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:45:33,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:33,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:33,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:33,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:45:33,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:33,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:33,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:33,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:33,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:33,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:33,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:33,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:33,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-10-17 10:45:33,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:33,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:33,942 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:33,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:45:33,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:33,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:33,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:33,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:33,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:33,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:33,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:33,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:33,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,018 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-10-17 10:45:34,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:45:34,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:34,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,030 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:34,035 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:34,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-10-17 10:45:34,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:45:34,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:34,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,083 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:34,095 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:34,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,129 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-10-17 10:45:34,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,130 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:45:34,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:34,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,142 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:34,148 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:34,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,189 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:45:34,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:34,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,200 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:34,212 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:34,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,248 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-10-17 10:45:34,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,250 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:45:34,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:34,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,264 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:34,274 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:34,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,327 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:45:34,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:34,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,341 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:34,348 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:34,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,380 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-10-17 10:45:34,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:45:34,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,392 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,392 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:34,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,393 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:34,397 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:34,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:45:34,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,445 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,445 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:34,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,446 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:34,452 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:34,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,520 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-10-17 10:45:34,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,522 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:45:34,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,544 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,544 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:45:34,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,545 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:34,557 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:34,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,617 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:45:34,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,628 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,628 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:45:34,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,629 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:34,638 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:34,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,713 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-10-17 10:45:34,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,714 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,736 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,736 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:34,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,736 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:34,749 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:34,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:45:34,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,818 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:45:34,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,829 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,829 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:34,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,829 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:34,846 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:34,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:34,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:34,909 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-10-17 10:45:34,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:34,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:34,913 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:34,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:34,931 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:34,932 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:34,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:34,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:34,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:34,932 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:34,939 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:34,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:34,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:45:34,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:35,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:35,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:35,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:35,002 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:35,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:45:35,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:35,020 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:35,021 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:35,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:35,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:35,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:35,021 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:35,028 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:35,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:35,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:35,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:35,070 INFO L490 LassoAnalysis]: Using template '3-lex'. [2022-10-17 10:45:35,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:35,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:35,072 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:35,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:45:35,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:35,086 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:35,087 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:35,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:35,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:35,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:35,087 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:45:35,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:35,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:35,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:35,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:35,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:35,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:35,142 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:35,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:45:35,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:35,152 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:35,152 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:35,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:35,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:35,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:35,153 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:45:35,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:35,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:35,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:35,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:45:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:45:35,200 INFO L87 Difference]: Start difference. First operand 304 states and 427 transitions. cyclomatic complexity: 130 Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:35,402 INFO L93 Difference]: Finished difference Result 621 states and 854 transitions. [2022-10-17 10:45:35,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 854 transitions. [2022-10-17 10:45:35,437 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 424 [2022-10-17 10:45:35,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 621 states and 854 transitions. [2022-10-17 10:45:35,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 621 [2022-10-17 10:45:35,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 621 [2022-10-17 10:45:35,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 621 states and 854 transitions. [2022-10-17 10:45:35,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:35,448 INFO L218 hiAutomatonCegarLoop]: Abstraction has 621 states and 854 transitions. [2022-10-17 10:45:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states and 854 transitions. [2022-10-17 10:45:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 328. [2022-10-17 10:45:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 328 states have (on average 1.375) internal successors, (451), 327 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 451 transitions. [2022-10-17 10:45:35,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 328 states and 451 transitions. [2022-10-17 10:45:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:45:35,462 INFO L428 stractBuchiCegarLoop]: Abstraction has 328 states and 451 transitions. [2022-10-17 10:45:35,462 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:45:35,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states and 451 transitions. [2022-10-17 10:45:35,465 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 212 [2022-10-17 10:45:35,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:35,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:35,466 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:35,466 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:35,467 INFO L748 eck$LassoCheckResult]: Stem: 3269#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(13, 2); 3254#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 3241#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 3243#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 3245#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 3246#L59-1 mp_add_~nb~0#1 := 4; 3263#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 3250#L71 assume !(0 == mp_add_~b2~0#1 % 256); 3251#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 3286#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 3284#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3265#L84 [2022-10-17 10:45:35,467 INFO L750 eck$LassoCheckResult]: Loop: 3265#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 3266#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 3560#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 3559#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 3548#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 3238#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 3240#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 3288#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 3547#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 3533#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 3396#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 3394#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 3395#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3265#L84 [2022-10-17 10:45:35,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2143364048, now seen corresponding path program 1 times [2022-10-17 10:45:35,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:35,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693484824] [2022-10-17 10:45:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:35,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:35,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:35,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:35,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:35,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1738393452, now seen corresponding path program 6 times [2022-10-17 10:45:35,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:35,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059575590] [2022-10-17 10:45:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:35,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:35,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:35,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:35,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1046711293, now seen corresponding path program 1 times [2022-10-17 10:45:35,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:35,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461619801] [2022-10-17 10:45:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:35,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:35,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:35,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461619801] [2022-10-17 10:45:35,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461619801] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:35,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:35,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:45:35,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379489508] [2022-10-17 10:45:35,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:35,897 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:35,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:35,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:35,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:35,898 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:45:35,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:35,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:35,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:35,898 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration7_Loop [2022-10-17 10:45:35,898 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:35,898 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:35,900 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:35,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:36,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:36,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:45:36,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:36,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:36,249 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:36,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:36,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:36,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:45:36,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:36,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:36,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:36,376 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:45:36,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:36,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:38,976 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:45:38,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:38,981 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:38,981 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:38,981 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:38,981 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:38,981 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:45:38,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:38,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:38,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:38,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration7_Loop [2022-10-17 10:45:38,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:38,981 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:38,982 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:38,993 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:39,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:39,316 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:45:39,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,317 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:45:39,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:39,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:39,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,357 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:45:39,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:39,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:39,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,408 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-10-17 10:45:39,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,409 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:45:39,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,419 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:39,422 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:39,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-10-17 10:45:39,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,451 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,452 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 [2022-10-17 10:45:39,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:45:39,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,461 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:39,465 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:39,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-10-17 10:45:39,493 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-10-17 10:45:39,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,495 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:45:39,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,509 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:39,513 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:39,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-10-17 10:45:39,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,543 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:45:39,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,555 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:39,560 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:39,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-10-17 10:45:39,589 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-10-17 10:45:39,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,590 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:45:39,592 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 [2022-10-17 10:45:39,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,601 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:39,606 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:39,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,636 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:45:39,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:39,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,649 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:39,654 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:39,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,690 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-10-17 10:45:39,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,693 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-10-17 10:45:39,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,703 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:39,703 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:39,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,703 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:39,708 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:39,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,754 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,780 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:39,780 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:39,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,781 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:39,786 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:39,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-10-17 10:45:39,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,844 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-10-17 10:45:39,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,846 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,859 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:39,859 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:45:39,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,860 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:39,866 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:39,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-10-17 10:45:39,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:39,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:39,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:39,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:39,944 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:39,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:39,961 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:39,961 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:45:39,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:39,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:39,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:39,962 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:39,970 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:39,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:39,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-10-17 10:45:40,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,045 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-10-17 10:45:40,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:40,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:40,047 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:40,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:40,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-10-17 10:45:40,061 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:40,061 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:40,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:40,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:40,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:40,062 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:40,068 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:40,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:40,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:40,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:40,141 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:40,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:40,156 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:40,156 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:40,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:40,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:40,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:40,157 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:40,168 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:40,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:40,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-10-17 10:45:40,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,245 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-10-17 10:45:40,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:40,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:40,246 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:40,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:40,259 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:40,259 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:40,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:40,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:40,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:40,260 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:40,266 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:40,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:40,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-10-17 10:45:40,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:40,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:40,332 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:40,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:40,346 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:40,346 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:40,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:40,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:40,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:40,346 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:40,352 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:40,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:40,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-10-17 10:45:40,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,420 INFO L490 LassoAnalysis]: Using template '3-lex'. [2022-10-17 10:45:40,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:40,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:40,421 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:40,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:40,437 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:40,437 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:40,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:40,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:40,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:40,437 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:45:40,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-10-17 10:45:40,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:40,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:40,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:40,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:40,505 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:40,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:40,518 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:40,518 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:40,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:40,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:40,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:40,519 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:45:40,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:40,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:40,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-10-17 10:45:40,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:40,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:40,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:45:40,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:45:40,600 INFO L87 Difference]: Start difference. First operand 328 states and 451 transitions. cyclomatic complexity: 130 Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:41,011 INFO L93 Difference]: Finished difference Result 946 states and 1289 transitions. [2022-10-17 10:45:41,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 946 states and 1289 transitions. [2022-10-17 10:45:41,021 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 636 [2022-10-17 10:45:41,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 946 states to 946 states and 1289 transitions. [2022-10-17 10:45:41,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 946 [2022-10-17 10:45:41,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 946 [2022-10-17 10:45:41,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 946 states and 1289 transitions. [2022-10-17 10:45:41,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:41,035 INFO L218 hiAutomatonCegarLoop]: Abstraction has 946 states and 1289 transitions. [2022-10-17 10:45:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states and 1289 transitions. [2022-10-17 10:45:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 328. [2022-10-17 10:45:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 328 states have (on average 1.375) internal successors, (451), 327 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 451 transitions. [2022-10-17 10:45:41,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 328 states and 451 transitions. [2022-10-17 10:45:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:41,054 INFO L428 stractBuchiCegarLoop]: Abstraction has 328 states and 451 transitions. [2022-10-17 10:45:41,054 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:45:41,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states and 451 transitions. [2022-10-17 10:45:41,057 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 212 [2022-10-17 10:45:41,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:41,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:41,059 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:41,059 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:41,066 INFO L748 eck$LassoCheckResult]: Stem: 4558#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(13, 2); 4543#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 4530#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 4532#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 4534#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 4535#L59-1 mp_add_~nb~0#1 := 4; 4552#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 4554#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 4579#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 4580#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 4846#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4576#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4577#L84 [2022-10-17 10:45:41,066 INFO L750 eck$LassoCheckResult]: Loop: 4577#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 4844#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 4842#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4841#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4839#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4837#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 4835#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 4827#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4834#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4566#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4567#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4596#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4597#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4577#L84 [2022-10-17 10:45:41,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:41,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2012081280, now seen corresponding path program 1 times [2022-10-17 10:45:41,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:41,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266711795] [2022-10-17 10:45:41,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:41,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:41,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:41,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1738393452, now seen corresponding path program 7 times [2022-10-17 10:45:41,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:41,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670406261] [2022-10-17 10:45:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:41,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:41,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:41,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2075550029, now seen corresponding path program 1 times [2022-10-17 10:45:41,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:41,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631116304] [2022-10-17 10:45:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:41,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:41,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631116304] [2022-10-17 10:45:41,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631116304] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:41,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:41,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:45:41,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221665227] [2022-10-17 10:45:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:41,525 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:41,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:41,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:41,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:41,526 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:45:41,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:41,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:41,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:41,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration8_Loop [2022-10-17 10:45:41,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:41,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:41,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:41,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:41,864 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:41,864 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:45:41,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:41,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:41,865 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:41,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-10-17 10:45:41,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:45:41,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:41,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:41,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:41,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:41,936 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:41,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-10-17 10:45:41,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:45:41,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:45:43,052 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:45:43,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,055 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:45:43,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:45:43,056 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:45:43,056 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:45:43,056 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:45:43,056 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,056 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:45:43,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:45:43,056 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add-1.i_Iteration8_Loop [2022-10-17 10:45:43,056 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:45:43,056 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:45:43,057 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:43,081 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:45:43,366 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:45:43,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:45:43,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,367 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-10-17 10:45:43,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:43,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:43,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,452 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:45:43,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:45:43,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-10-17 10:45:43,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,528 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-10-17 10:45:43,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,533 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,547 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:43,551 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:43,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-10-17 10:45:43,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,612 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,627 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:43,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-10-17 10:45:43,632 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:43,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,701 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-10-17 10:45:43,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,702 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,716 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:43,720 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:43,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-10-17 10:45:43,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,790 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,808 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:43,814 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:43,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-10-17 10:45:43,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,869 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-10-17 10:45:43,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,871 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,885 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:43,891 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:43,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-10-17 10:45:43,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:43,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:43,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:43,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:43,949 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:43,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-10-17 10:45:43,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:43,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:45:43,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:43,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:43,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:43,961 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:43,968 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:43,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:43,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-10-17 10:45:44,013 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-10-17 10:45:44,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,016 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-10-17 10:45:44,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,045 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,045 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:44,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,046 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:44,049 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:44,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,106 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,120 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,120 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:44,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,121 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:45:44,126 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:45:44,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-10-17 10:45:44,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,186 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-10-17 10:45:44,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,189 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,202 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,203 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:45:44,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,203 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:44,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-10-17 10:45:44,210 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:44,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,277 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,292 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,293 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:45:44,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,293 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:44,302 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:44,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-10-17 10:45:44,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,368 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-10-17 10:45:44,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,373 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,387 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,387 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:44,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,388 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:44,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-10-17 10:45:44,397 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:44,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,467 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,484 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,484 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:44,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,484 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:45:44,494 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:45:44,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-10-17 10:45:44,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,569 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-10-17 10:45:44,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,571 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,584 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,585 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:44,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,585 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:44,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-10-17 10:45:44,590 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:44,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-10-17 10:45:44,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,653 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-10-17 10:45:44,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,663 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,663 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:45:44,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,664 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:45:44,672 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:45:44,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,737 INFO L490 LassoAnalysis]: Using template '3-lex'. [2022-10-17 10:45:44,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,738 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,756 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,756 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:44,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,757 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:45:44,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-10-17 10:45:44,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:44,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:45:44,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:44,829 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:44,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:45:44,844 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:45:44,844 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:45:44,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:45:44,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:45:44,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:45:44,845 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:45:44,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:45:44,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:45:44,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-10-17 10:45:44,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:45:44,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-10-17 10:45:44,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:44,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:45:44,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:45:44,920 INFO L87 Difference]: Start difference. First operand 328 states and 451 transitions. cyclomatic complexity: 130 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:45,693 INFO L93 Difference]: Finished difference Result 1321 states and 1776 transitions. [2022-10-17 10:45:45,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1321 states and 1776 transitions. [2022-10-17 10:45:45,706 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 848 [2022-10-17 10:45:45,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1321 states to 1321 states and 1776 transitions. [2022-10-17 10:45:45,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1321 [2022-10-17 10:45:45,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1321 [2022-10-17 10:45:45,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1321 states and 1776 transitions. [2022-10-17 10:45:45,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:45,723 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1321 states and 1776 transitions. [2022-10-17 10:45:45,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states and 1776 transitions. [2022-10-17 10:45:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 301. [2022-10-17 10:45:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 301 states have (on average 1.398671096345515) internal successors, (421), 300 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 421 transitions. [2022-10-17 10:45:45,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 301 states and 421 transitions. [2022-10-17 10:45:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:45:45,747 INFO L428 stractBuchiCegarLoop]: Abstraction has 301 states and 421 transitions. [2022-10-17 10:45:45,747 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-10-17 10:45:45,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 301 states and 421 transitions. [2022-10-17 10:45:45,749 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 212 [2022-10-17 10:45:45,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:45,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:45,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:45,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:45,753 INFO L748 eck$LassoCheckResult]: Stem: 6225#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(13, 2); 6211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 6193#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 6195#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 6197#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 6198#L59-1 mp_add_~nb~0#1 := 4; 6220#L69 assume !(0 == mp_add_~b3~0#1 % 256); 6244#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 6227#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6228#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 6242#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 6245#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6229#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6230#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6246#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6237#L90 [2022-10-17 10:45:45,753 INFO L750 eck$LassoCheckResult]: Loop: 6237#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 6238#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 6200#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 6201#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 6202#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 6204#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 6221#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6208#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6209#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6234#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6332#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6333#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 6223#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 6224#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6493#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6212#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6213#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6237#L90 [2022-10-17 10:45:45,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 1 times [2022-10-17 10:45:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:45,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776013237] [2022-10-17 10:45:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:45,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:45,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:45,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:45,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1188749690, now seen corresponding path program 1 times [2022-10-17 10:45:45,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:45,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504467171] [2022-10-17 10:45:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:45,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:45,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:45,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504467171] [2022-10-17 10:45:45,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504467171] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:45,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:45,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:45:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576425352] [2022-10-17 10:45:45,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:45,922 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:45,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:45,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:45:45,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:45:45,924 INFO L87 Difference]: Start difference. First operand 301 states and 421 transitions. cyclomatic complexity: 127 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:46,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:46,087 INFO L93 Difference]: Finished difference Result 451 states and 642 transitions. [2022-10-17 10:45:46,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 451 states and 642 transitions. [2022-10-17 10:45:46,094 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 361 [2022-10-17 10:45:46,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 451 states to 450 states and 641 transitions. [2022-10-17 10:45:46,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 450 [2022-10-17 10:45:46,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 450 [2022-10-17 10:45:46,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 450 states and 641 transitions. [2022-10-17 10:45:46,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:46,101 INFO L218 hiAutomatonCegarLoop]: Abstraction has 450 states and 641 transitions. [2022-10-17 10:45:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states and 641 transitions. [2022-10-17 10:45:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 412. [2022-10-17 10:45:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 412 states have (on average 1.4029126213592233) internal successors, (578), 411 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 578 transitions. [2022-10-17 10:45:46,115 INFO L240 hiAutomatonCegarLoop]: Abstraction has 412 states and 578 transitions. [2022-10-17 10:45:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:45:46,116 INFO L428 stractBuchiCegarLoop]: Abstraction has 412 states and 578 transitions. [2022-10-17 10:45:46,117 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-10-17 10:45:46,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 412 states and 578 transitions. [2022-10-17 10:45:46,120 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 323 [2022-10-17 10:45:46,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:46,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:46,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:46,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:46,125 INFO L748 eck$LassoCheckResult]: Stem: 6986#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(13, 2); 6971#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 6952#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 6954#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 6956#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 6957#L59-1 mp_add_~nb~0#1 := 4; 6983#L69 assume !(0 == mp_add_~b3~0#1 % 256); 6966#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 6988#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6989#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7002#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 7345#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6990#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6972#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6973#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6995#L90 [2022-10-17 10:45:46,126 INFO L750 eck$LassoCheckResult]: Loop: 6995#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 6996#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 6959#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 6960#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 6961#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 7030#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 7031#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7058#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7059#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7053#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7054#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7303#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 7304#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7347#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 7006#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7007#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 6968#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 6969#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6994#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7047#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7048#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 6984#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 6985#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 7005#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 7344#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 7343#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6995#L90 [2022-10-17 10:45:46,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:46,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 2 times [2022-10-17 10:45:46,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:46,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472376793] [2022-10-17 10:45:46,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:46,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:46,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:46,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:46,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:46,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1293860767, now seen corresponding path program 1 times [2022-10-17 10:45:46,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:46,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161008150] [2022-10-17 10:45:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:46,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:45:46,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:46,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161008150] [2022-10-17 10:45:46,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161008150] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:46,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:46,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:45:46,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327843823] [2022-10-17 10:45:46,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:46,206 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:46,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:46,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:45:46,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:45:46,207 INFO L87 Difference]: Start difference. First operand 412 states and 578 transitions. cyclomatic complexity: 173 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:46,308 INFO L93 Difference]: Finished difference Result 536 states and 740 transitions. [2022-10-17 10:45:46,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 536 states and 740 transitions. [2022-10-17 10:45:46,312 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 447 [2022-10-17 10:45:46,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 536 states to 536 states and 740 transitions. [2022-10-17 10:45:46,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 536 [2022-10-17 10:45:46,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 536 [2022-10-17 10:45:46,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 536 states and 740 transitions. [2022-10-17 10:45:46,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:46,320 INFO L218 hiAutomatonCegarLoop]: Abstraction has 536 states and 740 transitions. [2022-10-17 10:45:46,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states and 740 transitions. [2022-10-17 10:45:46,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 482. [2022-10-17 10:45:46,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 482 states have (on average 1.392116182572614) internal successors, (671), 481 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 671 transitions. [2022-10-17 10:45:46,335 INFO L240 hiAutomatonCegarLoop]: Abstraction has 482 states and 671 transitions. [2022-10-17 10:45:46,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:45:46,338 INFO L428 stractBuchiCegarLoop]: Abstraction has 482 states and 671 transitions. [2022-10-17 10:45:46,338 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-10-17 10:45:46,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 482 states and 671 transitions. [2022-10-17 10:45:46,342 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 393 [2022-10-17 10:45:46,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:46,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:46,343 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:46,343 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:46,346 INFO L748 eck$LassoCheckResult]: Stem: 7937#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(13, 2); 7925#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 7906#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 7908#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 7910#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 7911#L59-1 mp_add_~nb~0#1 := 4; 7992#L69 assume !(0 == mp_add_~b3~0#1 % 256); 7958#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 7959#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 8203#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8201#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 8200#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 8188#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 8182#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 8176#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 8164#L90 [2022-10-17 10:45:46,346 INFO L750 eck$LassoCheckResult]: Loop: 8164#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 8168#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 8166#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 8162#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 8158#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 8154#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 8153#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8152#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8151#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8150#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8149#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7953#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 7954#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8193#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 8186#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8181#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 8179#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8177#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8175#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8174#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 8172#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8171#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 8170#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 8169#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 8167#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 8163#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 8164#L90 [2022-10-17 10:45:46,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 3 times [2022-10-17 10:45:46,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:46,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996792744] [2022-10-17 10:45:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:46,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:46,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:46,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash 900833757, now seen corresponding path program 1 times [2022-10-17 10:45:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:46,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518373693] [2022-10-17 10:45:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:46,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:46,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518373693] [2022-10-17 10:45:46,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518373693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:46,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:46,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:46,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79327369] [2022-10-17 10:45:46,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:46,509 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:46,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:46,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:45:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:45:46,510 INFO L87 Difference]: Start difference. First operand 482 states and 671 transitions. cyclomatic complexity: 195 Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:46,818 INFO L93 Difference]: Finished difference Result 965 states and 1310 transitions. [2022-10-17 10:45:46,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 965 states and 1310 transitions. [2022-10-17 10:45:46,827 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 833 [2022-10-17 10:45:46,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 965 states to 964 states and 1309 transitions. [2022-10-17 10:45:46,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 964 [2022-10-17 10:45:46,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 964 [2022-10-17 10:45:46,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 964 states and 1309 transitions. [2022-10-17 10:45:46,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:46,841 INFO L218 hiAutomatonCegarLoop]: Abstraction has 964 states and 1309 transitions. [2022-10-17 10:45:46,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states and 1309 transitions. [2022-10-17 10:45:46,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 723. [2022-10-17 10:45:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 723 states have (on average 1.3706777316735823) internal successors, (991), 722 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 991 transitions. [2022-10-17 10:45:46,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 723 states and 991 transitions. [2022-10-17 10:45:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:45:46,865 INFO L428 stractBuchiCegarLoop]: Abstraction has 723 states and 991 transitions. [2022-10-17 10:45:46,865 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-10-17 10:45:46,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 723 states and 991 transitions. [2022-10-17 10:45:46,870 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 628 [2022-10-17 10:45:46,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:46,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:46,871 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:46,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:46,872 INFO L748 eck$LassoCheckResult]: Stem: 9396#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(13, 2); 9384#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 9364#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 9366#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 9368#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 9369#L59-1 mp_add_~nb~0#1 := 4; 9698#L69 assume !(0 == mp_add_~b3~0#1 % 256); 9412#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 9413#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9782#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 9781#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 9780#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 9779#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 9778#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 9777#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 9772#L90 [2022-10-17 10:45:46,872 INFO L750 eck$LassoCheckResult]: Loop: 9772#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 9753#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 9773#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 9769#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 9770#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 9724#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 9725#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 9815#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 9814#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 9813#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 9812#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9811#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 9810#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 9785#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 9723#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 9720#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 9721#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 9787#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 9752#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 9749#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9745#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 9746#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 9776#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 9775#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 9774#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 9771#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 9772#L90 [2022-10-17 10:45:46,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 4 times [2022-10-17 10:45:46,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:46,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301658349] [2022-10-17 10:45:46,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:46,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:46,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:46,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:46,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:46,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1994925345, now seen corresponding path program 1 times [2022-10-17 10:45:46,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:46,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037232064] [2022-10-17 10:45:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:46,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:47,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037232064] [2022-10-17 10:45:47,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037232064] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:47,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036069058] [2022-10-17 10:45:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:47,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:47,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:47,107 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:47,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2022-10-17 10:45:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:47,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:45:47,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:47,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:47,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036069058] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:47,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:47,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-17 10:45:47,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583464670] [2022-10-17 10:45:47,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:47,425 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:47,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:47,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:45:47,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:45:47,426 INFO L87 Difference]: Start difference. First operand 723 states and 991 transitions. cyclomatic complexity: 276 Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 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) [2022-10-17 10:45:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:47,928 INFO L93 Difference]: Finished difference Result 1229 states and 1633 transitions. [2022-10-17 10:45:47,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1229 states and 1633 transitions. [2022-10-17 10:45:47,938 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1055 [2022-10-17 10:45:47,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1229 states to 1229 states and 1633 transitions. [2022-10-17 10:45:47,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1229 [2022-10-17 10:45:47,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1229 [2022-10-17 10:45:47,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1229 states and 1633 transitions. [2022-10-17 10:45:47,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:47,954 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1229 states and 1633 transitions. [2022-10-17 10:45:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states and 1633 transitions. [2022-10-17 10:45:47,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1088. [2022-10-17 10:45:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1088 states have (on average 1.3446691176470589) internal successors, (1463), 1087 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1463 transitions. [2022-10-17 10:45:47,984 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1088 states and 1463 transitions. [2022-10-17 10:45:47,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:45:47,985 INFO L428 stractBuchiCegarLoop]: Abstraction has 1088 states and 1463 transitions. [2022-10-17 10:45:47,986 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-10-17 10:45:47,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1088 states and 1463 transitions. [2022-10-17 10:45:47,993 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 961 [2022-10-17 10:45:47,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:48,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:48,001 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:48,001 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:48,001 INFO L748 eck$LassoCheckResult]: Stem: 11512#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(13, 2); 11500#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 11481#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 11483#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 11485#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 11486#L59-1 mp_add_~nb~0#1 := 4; 12028#L69 assume !(0 == mp_add_~b3~0#1 % 256); 11533#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 11514#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11515#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 12216#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 12215#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 12214#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 12213#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 12212#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 12192#L90 [2022-10-17 10:45:48,001 INFO L750 eck$LassoCheckResult]: Loop: 12192#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 12070#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 12211#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 12209#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 12205#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 12056#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 12055#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 12054#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 12052#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 12047#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 12046#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 12035#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 12036#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 12135#L90 assume !(0 == mp_add_~i~0#1 % 256); 12134#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 12133#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 12131#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 12127#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 12125#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 12124#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 12123#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 12122#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 12121#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 12120#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 12119#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 12075#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 12203#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 12202#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 12201#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 12191#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 12192#L90 [2022-10-17 10:45:48,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:48,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 5 times [2022-10-17 10:45:48,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:48,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333736425] [2022-10-17 10:45:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:48,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:48,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:48,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:48,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:48,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1196420781, now seen corresponding path program 1 times [2022-10-17 10:45:48,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:48,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042614586] [2022-10-17 10:45:48,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:48,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:45:48,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:48,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042614586] [2022-10-17 10:45:48,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042614586] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:48,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:48,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590553005] [2022-10-17 10:45:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:48,235 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:45:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:45:48,235 INFO L87 Difference]: Start difference. First operand 1088 states and 1463 transitions. cyclomatic complexity: 383 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:48,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:48,477 INFO L93 Difference]: Finished difference Result 1450 states and 1886 transitions. [2022-10-17 10:45:48,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1450 states and 1886 transitions. [2022-10-17 10:45:48,493 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1308 [2022-10-17 10:45:48,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1450 states to 1449 states and 1883 transitions. [2022-10-17 10:45:48,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1449 [2022-10-17 10:45:48,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1449 [2022-10-17 10:45:48,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1449 states and 1883 transitions. [2022-10-17 10:45:48,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:48,513 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1449 states and 1883 transitions. [2022-10-17 10:45:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states and 1883 transitions. [2022-10-17 10:45:48,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1136. [2022-10-17 10:45:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1136 states have (on average 1.3195422535211268) internal successors, (1499), 1135 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1499 transitions. [2022-10-17 10:45:48,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1136 states and 1499 transitions. [2022-10-17 10:45:48,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:45:48,550 INFO L428 stractBuchiCegarLoop]: Abstraction has 1136 states and 1499 transitions. [2022-10-17 10:45:48,550 INFO L335 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2022-10-17 10:45:48,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1136 states and 1499 transitions. [2022-10-17 10:45:48,558 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1043 [2022-10-17 10:45:48,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:48,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:48,562 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:48,562 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:48,564 INFO L748 eck$LassoCheckResult]: Stem: 14063#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(13, 2); 14049#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 14029#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 14031#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 14033#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 14034#L59-1 mp_add_~nb~0#1 := 4; 14503#L69 assume !(0 == mp_add_~b3~0#1 % 256); 14084#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 14085#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14968#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14966#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 14967#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 14951#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14952#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14941#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14940#L90 [2022-10-17 10:45:48,564 INFO L750 eck$LassoCheckResult]: Loop: 14940#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 14838#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 14939#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14934#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14930#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 14928#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 14887#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14927#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14926#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14925#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14924#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14923#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 14921#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14922#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 15020#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 15019#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 15018#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 15017#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 15016#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 15015#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 15014#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 15013#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14865#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 15000#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14795#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14796#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 14510#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14511#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14157#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14158#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14842#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 14964#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 14965#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14947#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14948#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14940#L90 [2022-10-17 10:45:48,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 6 times [2022-10-17 10:45:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:48,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303225211] [2022-10-17 10:45:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:48,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:48,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:48,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash -239832150, now seen corresponding path program 2 times [2022-10-17 10:45:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:48,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228146111] [2022-10-17 10:45:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:48,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:48,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228146111] [2022-10-17 10:45:48,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228146111] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:48,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594915210] [2022-10-17 10:45:48,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:48,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:48,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:48,728 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:48,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2022-10-17 10:45:48,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:45:48,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:48,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:45:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:48,878 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-17 10:45:48,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:45:48,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594915210] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:48,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:45:48,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-10-17 10:45:48,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191135925] [2022-10-17 10:45:48,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:48,882 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:48,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:48,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:45:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:45:48,883 INFO L87 Difference]: Start difference. First operand 1136 states and 1499 transitions. cyclomatic complexity: 369 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:49,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:49,106 INFO L93 Difference]: Finished difference Result 1318 states and 1709 transitions. [2022-10-17 10:45:49,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1318 states and 1709 transitions. [2022-10-17 10:45:49,118 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1216 [2022-10-17 10:45:49,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1318 states to 1309 states and 1700 transitions. [2022-10-17 10:45:49,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1309 [2022-10-17 10:45:49,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1309 [2022-10-17 10:45:49,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1309 states and 1700 transitions. [2022-10-17 10:45:49,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:49,134 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1309 states and 1700 transitions. [2022-10-17 10:45:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states and 1700 transitions. [2022-10-17 10:45:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1226. [2022-10-17 10:45:49,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1226 states have (on average 1.3058727569331159) internal successors, (1601), 1225 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1601 transitions. [2022-10-17 10:45:49,167 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1226 states and 1601 transitions. [2022-10-17 10:45:49,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:45:49,168 INFO L428 stractBuchiCegarLoop]: Abstraction has 1226 states and 1601 transitions. [2022-10-17 10:45:49,169 INFO L335 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2022-10-17 10:45:49,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1226 states and 1601 transitions. [2022-10-17 10:45:49,177 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1135 [2022-10-17 10:45:49,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:49,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:49,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:49,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:49,179 INFO L748 eck$LassoCheckResult]: Stem: 16625#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(13, 2); 16613#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 16600#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 16602#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 16604#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 16605#L59-1 mp_add_~nb~0#1 := 4; 16737#L69 assume !(0 == mp_add_~b3~0#1 % 256); 16643#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 16629#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 16630#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17817#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 17816#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 17815#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 17814#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 17773#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 17772#L90 [2022-10-17 10:45:49,179 INFO L750 eck$LassoCheckResult]: Loop: 17772#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 17492#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 17771#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 17769#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 17763#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 17737#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 17478#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 17735#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17734#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 16705#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 16695#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 16696#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 17704#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 17703#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 17805#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17804#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 17803#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17802#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17801#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 16697#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 16698#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 17428#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 17421#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 17416#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17417#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 16740#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 16741#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17477#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 16650#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 16651#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17499#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 17795#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 17794#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 17792#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 17789#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 17772#L90 [2022-10-17 10:45:49,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:49,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 7 times [2022-10-17 10:45:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111194075] [2022-10-17 10:45:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:49,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:49,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:49,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:49,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash -632859160, now seen corresponding path program 2 times [2022-10-17 10:45:49,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:49,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142233264] [2022-10-17 10:45:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:49,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:45:49,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:49,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142233264] [2022-10-17 10:45:49,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142233264] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:45:49,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037795927] [2022-10-17 10:45:49,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:45:49,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:45:49,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:49,346 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:45:49,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4873b1ab-d32e-4c84-bcc2-38a670605f9b/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-10-17 10:45:49,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:45:49,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:45:49,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:45:49,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:45:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:45:49,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:45:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:45:49,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037795927] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:45:49,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:45:49,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-17 10:45:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337624135] [2022-10-17 10:45:49,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:45:49,560 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:45:49,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:45:49,561 INFO L87 Difference]: Start difference. First operand 1226 states and 1601 transitions. cyclomatic complexity: 380 Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:51,406 INFO L93 Difference]: Finished difference Result 2029 states and 2515 transitions. [2022-10-17 10:45:51,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2029 states and 2515 transitions. [2022-10-17 10:45:51,430 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1839 [2022-10-17 10:45:51,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2029 states to 2000 states and 2477 transitions. [2022-10-17 10:45:51,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2000 [2022-10-17 10:45:51,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2000 [2022-10-17 10:45:51,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2000 states and 2477 transitions. [2022-10-17 10:45:51,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:51,455 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2000 states and 2477 transitions. [2022-10-17 10:45:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states and 2477 transitions. [2022-10-17 10:45:51,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1227. [2022-10-17 10:45:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1227 states have (on average 1.2828035859820701) internal successors, (1574), 1226 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:51,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1574 transitions. [2022-10-17 10:45:51,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1227 states and 1574 transitions. [2022-10-17 10:45:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-17 10:45:51,498 INFO L428 stractBuchiCegarLoop]: Abstraction has 1227 states and 1574 transitions. [2022-10-17 10:45:51,498 INFO L335 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2022-10-17 10:45:51,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1227 states and 1574 transitions. [2022-10-17 10:45:51,504 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1117 [2022-10-17 10:45:51,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:51,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:51,505 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:51,505 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:51,506 INFO L748 eck$LassoCheckResult]: Stem: 20209#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(13, 2); 20197#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 20176#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 20178#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 20180#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 20181#L59-1 mp_add_~nb~0#1 := 4; 20585#L69 assume !(0 == mp_add_~b3~0#1 % 256); 20582#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 20581#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20580#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 20579#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 20578#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 20577#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 20576#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 20574#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 20550#L90 [2022-10-17 10:45:51,506 INFO L750 eck$LassoCheckResult]: Loop: 20550#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 20570#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 20568#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 20566#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 20563#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 20564#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 20571#L96-8 mp_add_~carry~0#1 := 1; 20569#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 20567#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 20565#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20562#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 20517#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20518#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20509#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 20510#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20504#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 20501#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 20499#L96-8 mp_add_~carry~0#1 := 1; 20497#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20494#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 20361#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20489#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 20486#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20483#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20480#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 20472#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20468#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 20469#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 20470#L96-8 mp_add_~carry~0#1 := 1; 20467#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20462#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 20460#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 20458#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 20452#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20451#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20449#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 20446#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20441#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 20442#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 20440#L96-8 mp_add_~carry~0#1 := 1; 20438#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20436#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 20426#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20422#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 20416#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20414#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20412#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 20404#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20406#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 20386#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 20383#L96-8 mp_add_~carry~0#1 := 1; 20377#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20378#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 20366#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20363#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 20352#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20351#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20334#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 20335#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20421#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 20389#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 20390#L96-8 mp_add_~carry~0#1 := 1; 20379#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20380#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 20367#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20364#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 20356#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20353#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20292#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 20293#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20373#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 20374#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20435#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 20434#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20432#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 20431#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 20428#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 20429#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 20557#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 20556#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 20553#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 20551#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 20549#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 20550#L90 [2022-10-17 10:45:51,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:51,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 8 times [2022-10-17 10:45:51,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:51,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235003998] [2022-10-17 10:45:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:51,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:51,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:51,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1271323788, now seen corresponding path program 1 times [2022-10-17 10:45:51,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:51,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457647792] [2022-10-17 10:45:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:51,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-10-17 10:45:51,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:51,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457647792] [2022-10-17 10:45:51,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457647792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:51,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:51,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:45:51,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235061988] [2022-10-17 10:45:51,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:51,651 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:45:51,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:51,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:45:51,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:45:51,652 INFO L87 Difference]: Start difference. First operand 1227 states and 1574 transitions. cyclomatic complexity: 352 Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:45:51,715 INFO L93 Difference]: Finished difference Result 1542 states and 1876 transitions. [2022-10-17 10:45:51,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1542 states and 1876 transitions. [2022-10-17 10:45:51,723 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1259 [2022-10-17 10:45:51,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1542 states to 1398 states and 1732 transitions. [2022-10-17 10:45:51,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1398 [2022-10-17 10:45:51,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1398 [2022-10-17 10:45:51,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1398 states and 1732 transitions. [2022-10-17 10:45:51,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:45:51,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1398 states and 1732 transitions. [2022-10-17 10:45:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states and 1732 transitions. [2022-10-17 10:45:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1121. [2022-10-17 10:45:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1121 states have (on average 1.255129348795718) internal successors, (1407), 1120 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:45:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1407 transitions. [2022-10-17 10:45:51,772 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1121 states and 1407 transitions. [2022-10-17 10:45:51,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:45:51,773 INFO L428 stractBuchiCegarLoop]: Abstraction has 1121 states and 1407 transitions. [2022-10-17 10:45:51,773 INFO L335 stractBuchiCegarLoop]: ======== Iteration 17 ============ [2022-10-17 10:45:51,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1121 states and 1407 transitions. [2022-10-17 10:45:51,778 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 996 [2022-10-17 10:45:51,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:45:51,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:45:51,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:51,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:51,780 INFO L748 eck$LassoCheckResult]: Stem: 22987#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(13, 2); 22973#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~a~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~b~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_#t~nondet1#1, mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1, mp_add_#t~nondet2#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 22959#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 22961#L61 assume 0 == mp_add_~a2~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 22963#L63 assume 0 == mp_add_~a1~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 22964#L59-1 mp_add_~nb~0#1 := 4; 23278#L69 assume !(0 == mp_add_~b3~0#1 % 256); 23275#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 23274#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23273#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 23271#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 23272#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 23267#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 23268#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 23263#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 23262#L90 [2022-10-17 10:45:51,780 INFO L750 eck$LassoCheckResult]: Loop: 23262#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 23261#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 23260#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 23258#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 23253#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 23255#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 23248#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 23249#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 23244#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 23245#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23240#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23241#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 23237#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 23236#L90 assume !(0 == mp_add_~i~0#1 % 256); 23235#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 23131#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 23231#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 23228#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 23229#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 23230#L96-8 mp_add_~carry~0#1 := 1; 23227#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 23225#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 23223#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 23221#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 23219#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23217#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23212#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 23213#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 23216#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 23201#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 23211#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 23209#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 23207#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 23205#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23187#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23188#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 23183#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 23181#L90 assume !(0 == mp_add_~i~0#1 % 256); 23179#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 23176#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 23168#L92-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b3~0#1 % 256; 23164#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 23160#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 23156#L96-8 mp_add_~carry~0#1 := 1; 23154#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 23152#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 23150#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 23148#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 23116#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23146#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23145#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 23143#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 23144#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 23956#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 23954#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 23139#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 23138#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 23105#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23137#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23135#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 23136#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 23132#L90 assume !(0 == mp_add_~i~0#1 % 256); 23130#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 23129#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 23127#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 23124#L89 assume mp_add_~partial_sum~0#1 % 65536 > 254; 23121#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 23120#L96-8 mp_add_~carry~0#1 := 1; 23119#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 23118#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 23117#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 23115#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 23114#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23113#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23112#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 23110#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 23109#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 254); 23108#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 23107#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 23106#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 23104#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 23103#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23032#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 23033#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 23264#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 23269#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 23270#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 23265#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 23266#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 23262#L90 [2022-10-17 10:45:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:51,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1265810513, now seen corresponding path program 9 times [2022-10-17 10:45:51,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:51,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522508728] [2022-10-17 10:45:51,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:51,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:51,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:45:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:45:51,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:45:51,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1286195251, now seen corresponding path program 1 times [2022-10-17 10:45:51,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:51,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566986222] [2022-10-17 10:45:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:51,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat