./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1-1.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_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/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_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/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_fd3d2566-de5c-49fc-9950-807b685a6d1e/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 0ba3e3db8f44a5e9ad151b8422bee8deebac1dcf47a42cba5485daeafd8d8e80 --- 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 10:47:59,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:47:59,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:48:00,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:48:00,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:48:00,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:48:00,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:48:00,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:48:00,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:48:00,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:48:00,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:48:00,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:48:00,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:48:00,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:48:00,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:48:00,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:48:00,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:48:00,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:48:00,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:48:00,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:48:00,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:48:00,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:48:00,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:48:00,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:48:00,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:48:00,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:48:00,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:48:00,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:48:00,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:48:00,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:48:00,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:48:00,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:48:00,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:48:00,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:48:00,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:48:00,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:48:00,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:48:00,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:48:00,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:48:00,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:48:00,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:48:00,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:48:00,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:48:00,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:48:00,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:48:00,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:48:00,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:48:00,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:48:00,106 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:48:00,107 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:48:00,107 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:48:00,107 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:48:00,108 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:48:00,108 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:48:00,109 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:48:00,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:48:00,109 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:48:00,109 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:48:00,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:48:00,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:48:00,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:48:00,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:48:00,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:48:00,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:48:00,111 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:48:00,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:48:00,113 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:48:00,113 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:48:00,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:48:00,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:48:00,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:48:00,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:48:00,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:48:00,115 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:48:00,115 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_fd3d2566-de5c-49fc-9950-807b685a6d1e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba3e3db8f44a5e9ad151b8422bee8deebac1dcf47a42cba5485daeafd8d8e80 [2022-10-17 10:48:00,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:48:00,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:48:00,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:48:00,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:48:00,469 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:48:00,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2022-10-17 10:48:00,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/data/83e81c20f/4ccb2c0d2c1b4f31bb81e6a25124dac5/FLAG87f0e50b1 [2022-10-17 10:48:00,971 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:48:00,972 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/sv-benchmarks/c/bitvector/byte_add_1-1.i [2022-10-17 10:48:00,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/data/83e81c20f/4ccb2c0d2c1b4f31bb81e6a25124dac5/FLAG87f0e50b1 [2022-10-17 10:48:01,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/data/83e81c20f/4ccb2c0d2c1b4f31bb81e6a25124dac5 [2022-10-17 10:48:01,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:48:01,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:48:01,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:01,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:48:01,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:48:01,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e973c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01, skipping insertion in model container [2022-10-17 10:48:01,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:48:01,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:48:01,595 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_fd3d2566-de5c-49fc-9950-807b685a6d1e/sv-benchmarks/c/bitvector/byte_add_1-1.i[1168,1181] [2022-10-17 10:48:01,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:01,648 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:48:01,662 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_fd3d2566-de5c-49fc-9950-807b685a6d1e/sv-benchmarks/c/bitvector/byte_add_1-1.i[1168,1181] [2022-10-17 10:48:01,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:01,701 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:48:01,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01 WrapperNode [2022-10-17 10:48:01,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:01,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:01,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:48:01,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:48:01,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,770 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2022-10-17 10:48:01,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:01,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:48:01,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:48:01,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:48:01,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:48:01,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:48:01,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:48:01,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:48:01,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (1/1) ... [2022-10-17 10:48:01,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:01,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:01,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:01,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:48:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:48:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:48:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:48:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:48:02,041 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:48:02,043 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:48:02,866 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:48:02,872 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:48:02,872 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:48:02,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:02 BoogieIcfgContainer [2022-10-17 10:48:02,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:48:02,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:48:02,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:48:02,880 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:48:02,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:48:02,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:48:01" (1/3) ... [2022-10-17 10:48:02,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4233cccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:48:02, skipping insertion in model container [2022-10-17 10:48:02,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:48:02,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:01" (2/3) ... [2022-10-17 10:48:02,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4233cccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:48:02, skipping insertion in model container [2022-10-17 10:48:02,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:48:02,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:02" (3/3) ... [2022-10-17 10:48:02,885 INFO L332 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2022-10-17 10:48:02,938 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:48:02,939 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:48:02,939 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:48:02,939 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:48:02,939 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:48:02,939 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:48:02,940 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:48:02,940 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:48:02,944 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 10:48:02,966 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-10-17 10:48:02,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:02,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:02,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:48:02,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:02,974 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:48:02,975 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 10:48:02,979 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-10-17 10:48:02,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:02,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:02,981 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:48:02,981 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:02,989 INFO L748 eck$LassoCheckResult]: Stem: 40#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(15, 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~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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 10:48:02,989 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 > 255); 28#L95-1true assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 37#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 10:48:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:02,995 INFO L85 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2022-10-17 10:48:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:03,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637102184] [2022-10-17 10:48:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:03,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:03,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:03,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:03,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1026291578, now seen corresponding path program 1 times [2022-10-17 10:48:03,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:03,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129659003] [2022-10-17 10:48:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:03,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:03,297 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 10:48:03,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:03,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129659003] [2022-10-17 10:48:03,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129659003] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:03,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:03,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:03,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203416608] [2022-10-17 10:48:03,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:03,309 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:03,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:03,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:03,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:03,347 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 10:48:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:03,569 INFO L93 Difference]: Finished difference Result 78 states and 114 transitions. [2022-10-17 10:48:03,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 114 transitions. [2022-10-17 10:48:03,585 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2022-10-17 10:48:03,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 66 states and 98 transitions. [2022-10-17 10:48:03,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2022-10-17 10:48:03,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2022-10-17 10:48:03,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2022-10-17 10:48:03,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:03,599 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2022-10-17 10:48:03,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2022-10-17 10:48:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2022-10-17 10:48:03,638 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 10:48:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 96 transitions. [2022-10-17 10:48:03,642 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 96 transitions. [2022-10-17 10:48:03,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:03,648 INFO L428 stractBuchiCegarLoop]: Abstraction has 64 states and 96 transitions. [2022-10-17 10:48:03,649 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:48:03,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 96 transitions. [2022-10-17 10:48:03,651 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-10-17 10:48:03,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:03,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:03,652 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:03,652 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:03,653 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(15, 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~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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 10:48:03,653 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 > 255); 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 10:48:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2022-10-17 10:48:03,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:03,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334238329] [2022-10-17 10:48:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:03,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:04,024 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 10:48:04,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:04,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334238329] [2022-10-17 10:48:04,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334238329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:04,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:04,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416316199] [2022-10-17 10:48:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:04,027 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:04,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:04,027 INFO L85 PathProgramCache]: Analyzing trace with hash 758648136, now seen corresponding path program 1 times [2022-10-17 10:48:04,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:04,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294790047] [2022-10-17 10:48:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:04,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:04,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:04,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:04,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294790047] [2022-10-17 10:48:04,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294790047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:04,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:04,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:48:04,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954054732] [2022-10-17 10:48:04,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:04,123 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:04,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:48:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:04,125 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 10:48:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:04,703 INFO L93 Difference]: Finished difference Result 222 states and 310 transitions. [2022-10-17 10:48:04,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 310 transitions. [2022-10-17 10:48:04,708 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 147 [2022-10-17 10:48:04,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 222 states and 310 transitions. [2022-10-17 10:48:04,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 222 [2022-10-17 10:48:04,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 222 [2022-10-17 10:48:04,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 222 states and 310 transitions. [2022-10-17 10:48:04,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:04,722 INFO L218 hiAutomatonCegarLoop]: Abstraction has 222 states and 310 transitions. [2022-10-17 10:48:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states and 310 transitions. [2022-10-17 10:48:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 79. [2022-10-17 10:48:04,737 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 10:48:04,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 114 transitions. [2022-10-17 10:48:04,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 114 transitions. [2022-10-17 10:48:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:48:04,744 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 114 transitions. [2022-10-17 10:48:04,744 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:48:04,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 114 transitions. [2022-10-17 10:48:04,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-10-17 10:48:04,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:04,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:04,749 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:04,750 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:04,750 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(15, 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~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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 10:48:04,750 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 > 255); 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 10:48:04,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:04,751 INFO L85 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2022-10-17 10:48:04,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:04,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700172417] [2022-10-17 10:48:04,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:04,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:04,926 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 10:48:04,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:04,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700172417] [2022-10-17 10:48:04,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700172417] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:04,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:04,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:04,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984504964] [2022-10-17 10:48:04,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:04,928 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:04,930 INFO L85 PathProgramCache]: Analyzing trace with hash 758648136, now seen corresponding path program 2 times [2022-10-17 10:48:04,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:04,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703450206] [2022-10-17 10:48:04,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703450206] [2022-10-17 10:48:05,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703450206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:05,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:05,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:48:05,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2354921] [2022-10-17 10:48:05,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:05,036 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:05,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:05,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:05,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:05,038 INFO L87 Difference]: Start difference. First operand 79 states and 114 transitions. cyclomatic complexity: 37 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 10:48:05,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:05,047 INFO L93 Difference]: Finished difference Result 68 states and 95 transitions. [2022-10-17 10:48:05,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 95 transitions. [2022-10-17 10:48:05,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-10-17 10:48:05,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 68 states and 95 transitions. [2022-10-17 10:48:05,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-10-17 10:48:05,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-10-17 10:48:05,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 95 transitions. [2022-10-17 10:48:05,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:05,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 95 transitions. [2022-10-17 10:48:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 95 transitions. [2022-10-17 10:48:05,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-10-17 10:48:05,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 67 states have internal predecessors, (95), 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 10:48:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 95 transitions. [2022-10-17 10:48:05,068 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 95 transitions. [2022-10-17 10:48:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:05,070 INFO L428 stractBuchiCegarLoop]: Abstraction has 68 states and 95 transitions. [2022-10-17 10:48:05,070 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:48:05,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 95 transitions. [2022-10-17 10:48:05,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-10-17 10:48:05,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:05,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:05,075 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:05,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:05,076 INFO L748 eck$LassoCheckResult]: Stem: 624#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(15, 2); 610#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 597#L59 assume !(0 == mp_add_~a3~0#1 % 256); 598#L59-1 mp_add_~nb~0#1 := 4; 619#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 604#L71 assume !(0 == mp_add_~b2~0#1 % 256); 605#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 664#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; 663#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 662#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; 655#L84-2 [2022-10-17 10:48:05,076 INFO L750 eck$LassoCheckResult]: Loop: 655#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 661#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 657#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 656#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 599#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 601#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 620#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 607#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 608#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 631#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 634#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; 638#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 650#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; 655#L84-2 [2022-10-17 10:48:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 1 times [2022-10-17 10:48:05,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:05,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39608743] [2022-10-17 10:48:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:05,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:05,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:05,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:05,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1921567616, now seen corresponding path program 3 times [2022-10-17 10:48:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:05,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732180794] [2022-10-17 10:48:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:05,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:05,254 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 10:48:05,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:05,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732180794] [2022-10-17 10:48:05,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732180794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:05,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:05,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:05,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038402105] [2022-10-17 10:48:05,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:05,256 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:05,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:05,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:48:05,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:48:05,257 INFO L87 Difference]: Start difference. First operand 68 states and 95 transitions. cyclomatic complexity: 29 Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:05,422 INFO L93 Difference]: Finished difference Result 98 states and 142 transitions. [2022-10-17 10:48:05,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 142 transitions. [2022-10-17 10:48:05,423 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2022-10-17 10:48:05,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 98 states and 142 transitions. [2022-10-17 10:48:05,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2022-10-17 10:48:05,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2022-10-17 10:48:05,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 142 transitions. [2022-10-17 10:48:05,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:05,426 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 142 transitions. [2022-10-17 10:48:05,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 142 transitions. [2022-10-17 10:48:05,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2022-10-17 10:48:05,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4222222222222223) internal successors, (128), 89 states have internal predecessors, (128), 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 10:48:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2022-10-17 10:48:05,431 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90 states and 128 transitions. [2022-10-17 10:48:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:48:05,436 INFO L428 stractBuchiCegarLoop]: Abstraction has 90 states and 128 transitions. [2022-10-17 10:48:05,439 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:48:05,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 128 transitions. [2022-10-17 10:48:05,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2022-10-17 10:48:05,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:05,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:05,443 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:05,443 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:05,443 INFO L748 eck$LassoCheckResult]: Stem: 795#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(15, 2); 783#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 770#L59 assume !(0 == mp_add_~a3~0#1 % 256); 771#L59-1 mp_add_~nb~0#1 := 4; 790#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 777#L71 assume !(0 == mp_add_~b2~0#1 % 256); 778#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 814#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; 811#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 812#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; 815#L84-2 [2022-10-17 10:48:05,444 INFO L750 eck$LassoCheckResult]: Loop: 815#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 816#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 784#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 785#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 772#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 774#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 791#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 780#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 781#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 805#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 806#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; 821#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 834#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 850#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 824#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 822#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 823#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 803#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 804#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 846#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; 845#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 844#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; 815#L84-2 [2022-10-17 10:48:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:05,444 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 2 times [2022-10-17 10:48:05,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:05,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18053039] [2022-10-17 10:48:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:05,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:05,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:05,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:05,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash 93570923, now seen corresponding path program 1 times [2022-10-17 10:48:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:05,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40972647] [2022-10-17 10:48:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 10:48:05,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:05,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40972647] [2022-10-17 10:48:05,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40972647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:05,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:05,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:05,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907729379] [2022-10-17 10:48:05,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:05,559 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:05,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:05,560 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. cyclomatic complexity: 40 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 10:48:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:05,653 INFO L93 Difference]: Finished difference Result 125 states and 174 transitions. [2022-10-17 10:48:05,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 174 transitions. [2022-10-17 10:48:05,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2022-10-17 10:48:05,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 174 transitions. [2022-10-17 10:48:05,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2022-10-17 10:48:05,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2022-10-17 10:48:05,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 174 transitions. [2022-10-17 10:48:05,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:05,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 125 states and 174 transitions. [2022-10-17 10:48:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 174 transitions. [2022-10-17 10:48:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2022-10-17 10:48:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 123 states have (on average 1.3983739837398375) internal successors, (172), 122 states have internal predecessors, (172), 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 10:48:05,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 172 transitions. [2022-10-17 10:48:05,664 INFO L240 hiAutomatonCegarLoop]: Abstraction has 123 states and 172 transitions. [2022-10-17 10:48:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:05,666 INFO L428 stractBuchiCegarLoop]: Abstraction has 123 states and 172 transitions. [2022-10-17 10:48:05,666 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:48:05,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 172 transitions. [2022-10-17 10:48:05,667 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-10-17 10:48:05,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:05,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:05,668 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:05,669 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:05,669 INFO L748 eck$LassoCheckResult]: Stem: 1016#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(15, 2); 1004#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 991#L59 assume !(0 == mp_add_~a3~0#1 % 256); 992#L59-1 mp_add_~nb~0#1 := 4; 1011#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 998#L71 assume !(0 == mp_add_~b2~0#1 % 256); 999#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1106#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; 1101#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1063#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; 1061#L84-2 [2022-10-17 10:48:05,669 INFO L750 eck$LassoCheckResult]: Loop: 1061#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1059#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1058#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1056#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 > 255); 1044#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1043#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1042#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1041#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1040#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1036#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; 1037#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1006#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 993#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 995#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 1035#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 1001#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1002#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1025#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1028#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; 1039#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1086#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; 1061#L84-2 [2022-10-17 10:48:05,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:05,670 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 3 times [2022-10-17 10:48:05,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:05,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831513670] [2022-10-17 10:48:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:05,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:05,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:05,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:05,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:05,700 INFO L85 PathProgramCache]: Analyzing trace with hash 150829225, now seen corresponding path program 1 times [2022-10-17 10:48:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:05,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736728333] [2022-10-17 10:48:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:05,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:05,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 10:48:05,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:05,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736728333] [2022-10-17 10:48:05,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736728333] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:05,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:05,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:05,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975269177] [2022-10-17 10:48:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:05,820 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:05,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:05,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:48:05,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:48:05,822 INFO L87 Difference]: Start difference. First operand 123 states and 172 transitions. cyclomatic complexity: 51 Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 10:48:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:05,994 INFO L93 Difference]: Finished difference Result 174 states and 242 transitions. [2022-10-17 10:48:05,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 242 transitions. [2022-10-17 10:48:05,996 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2022-10-17 10:48:05,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 174 states and 242 transitions. [2022-10-17 10:48:05,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2022-10-17 10:48:05,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2022-10-17 10:48:05,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 242 transitions. [2022-10-17 10:48:05,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:05,999 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 242 transitions. [2022-10-17 10:48:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 242 transitions. [2022-10-17 10:48:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 120. [2022-10-17 10:48:06,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.4) internal successors, (168), 119 states have internal predecessors, (168), 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 10:48:06,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2022-10-17 10:48:06,005 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 168 transitions. [2022-10-17 10:48:06,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:48:06,007 INFO L428 stractBuchiCegarLoop]: Abstraction has 120 states and 168 transitions. [2022-10-17 10:48:06,007 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:48:06,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 168 transitions. [2022-10-17 10:48:06,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-10-17 10:48:06,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:06,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:06,009 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:06,009 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:06,010 INFO L748 eck$LassoCheckResult]: Stem: 1323#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(15, 2); 1311#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 1298#L59 assume !(0 == mp_add_~a3~0#1 % 256); 1299#L59-1 mp_add_~nb~0#1 := 4; 1318#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 1305#L71 assume !(0 == mp_add_~b2~0#1 % 256); 1306#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1325#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; 1326#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1407#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; 1399#L84-2 [2022-10-17 10:48:06,010 INFO L750 eck$LassoCheckResult]: Loop: 1399#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1404#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1401#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1386#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1381#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 1341#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1319#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1308#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1309#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1331#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1332#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; 1337#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1313#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1357#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 1355#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 1354#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1352#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 1350#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1349#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1347#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; 1348#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1377#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; 1399#L84-2 [2022-10-17 10:48:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:06,010 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 4 times [2022-10-17 10:48:06,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:06,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770810495] [2022-10-17 10:48:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:06,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:06,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:06,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:06,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:06,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1868578285, now seen corresponding path program 1 times [2022-10-17 10:48:06,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:06,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139801649] [2022-10-17 10:48:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:06,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:48:06,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:06,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139801649] [2022-10-17 10:48:06,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139801649] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:06,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:06,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:06,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401101809] [2022-10-17 10:48:06,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:06,111 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:06,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:06,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:48:06,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:48:06,112 INFO L87 Difference]: Start difference. First operand 120 states and 168 transitions. cyclomatic complexity: 50 Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 10:48:06,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:06,309 INFO L93 Difference]: Finished difference Result 220 states and 311 transitions. [2022-10-17 10:48:06,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 220 states and 311 transitions. [2022-10-17 10:48:06,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 201 [2022-10-17 10:48:06,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 220 states to 220 states and 311 transitions. [2022-10-17 10:48:06,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 220 [2022-10-17 10:48:06,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2022-10-17 10:48:06,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 311 transitions. [2022-10-17 10:48:06,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:06,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 220 states and 311 transitions. [2022-10-17 10:48:06,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 311 transitions. [2022-10-17 10:48:06,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 177. [2022-10-17 10:48:06,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.423728813559322) internal successors, (252), 176 states have internal predecessors, (252), 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 10:48:06,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2022-10-17 10:48:06,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 177 states and 252 transitions. [2022-10-17 10:48:06,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:48:06,324 INFO L428 stractBuchiCegarLoop]: Abstraction has 177 states and 252 transitions. [2022-10-17 10:48:06,324 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:48:06,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 252 transitions. [2022-10-17 10:48:06,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2022-10-17 10:48:06,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:06,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:06,327 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:06,327 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:06,327 INFO L748 eck$LassoCheckResult]: Stem: 1677#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(15, 2); 1662#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 1654#L59 assume !(0 == mp_add_~a3~0#1 % 256); 1655#L59-1 mp_add_~nb~0#1 := 4; 1671#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 1658#L71 assume !(0 == mp_add_~b2~0#1 % 256); 1659#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1680#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; 1681#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1674#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; 1675#L84-2 [2022-10-17 10:48:06,327 INFO L750 eck$LassoCheckResult]: Loop: 1675#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1782#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1779#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1749#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1748#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 1698#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1672#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1656#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1657#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1684#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1687#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; 1765#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1763#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1715#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 1713#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 1712#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1709#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1707#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1706#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1704#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; 1705#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1735#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; 1675#L84-2 [2022-10-17 10:48:06,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:06,328 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 5 times [2022-10-17 10:48:06,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:06,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609474615] [2022-10-17 10:48:06,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:06,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:06,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:06,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1925836587, now seen corresponding path program 1 times [2022-10-17 10:48:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:06,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554106502] [2022-10-17 10:48:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:06,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554106502] [2022-10-17 10:48:06,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554106502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:06,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143487385] [2022-10-17 10:48:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:06,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:06,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:06,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:06,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:48:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:06,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:48:06,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:06,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:07,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143487385] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:07,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:07,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2022-10-17 10:48:07,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389706986] [2022-10-17 10:48:07,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:07,101 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:07,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:07,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:48:07,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:48:07,102 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. cyclomatic complexity: 77 Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:07,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:07,725 INFO L93 Difference]: Finished difference Result 327 states and 450 transitions. [2022-10-17 10:48:07,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 450 transitions. [2022-10-17 10:48:07,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 273 [2022-10-17 10:48:07,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 327 states and 450 transitions. [2022-10-17 10:48:07,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 327 [2022-10-17 10:48:07,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2022-10-17 10:48:07,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 327 states and 450 transitions. [2022-10-17 10:48:07,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:07,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 327 states and 450 transitions. [2022-10-17 10:48:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states and 450 transitions. [2022-10-17 10:48:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 213. [2022-10-17 10:48:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.403755868544601) internal successors, (299), 212 states have internal predecessors, (299), 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 10:48:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 299 transitions. [2022-10-17 10:48:07,749 INFO L240 hiAutomatonCegarLoop]: Abstraction has 213 states and 299 transitions. [2022-10-17 10:48:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:48:07,757 INFO L428 stractBuchiCegarLoop]: Abstraction has 213 states and 299 transitions. [2022-10-17 10:48:07,757 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-10-17 10:48:07,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 299 transitions. [2022-10-17 10:48:07,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2022-10-17 10:48:07,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:07,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:07,760 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:07,760 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-17 10:48:07,760 INFO L748 eck$LassoCheckResult]: Stem: 2328#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(15, 2); 2315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 2307#L59 assume !(0 == mp_add_~a3~0#1 % 256); 2308#L59-1 mp_add_~nb~0#1 := 4; 2322#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 2311#L71 assume !(0 == mp_add_~b2~0#1 % 256); 2312#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 2438#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; 2437#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2434#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; 2433#L84-2 [2022-10-17 10:48:07,761 INFO L750 eck$LassoCheckResult]: Loop: 2433#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2432#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2430#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2427#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2424#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 2413#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 2411#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 2410#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 2409#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 2408#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 2405#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; 2402#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 2396#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2391#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 2389#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 2382#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 2381#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 2380#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 2379#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 2378#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; 2376#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2375#L84 assume !(0 == mp_add_~i~0#1 % 256); 2373#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2371#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2367#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2364#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2360#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 2358#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 2357#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 2356#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 2355#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 2354#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 2352#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; 2353#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2422#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; 2433#L84-2 [2022-10-17 10:48:07,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 6 times [2022-10-17 10:48:07,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:07,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764141497] [2022-10-17 10:48:07,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:07,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:07,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:07,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:07,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:07,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1960379948, now seen corresponding path program 1 times [2022-10-17 10:48:07,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:07,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241845693] [2022-10-17 10:48:07,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:07,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:07,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:07,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241845693] [2022-10-17 10:48:07,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241845693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:07,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:07,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:48:07,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969217920] [2022-10-17 10:48:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:07,982 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:07,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:48:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:07,983 INFO L87 Difference]: Start difference. First operand 213 states and 299 transitions. cyclomatic complexity: 88 Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 10:48:08,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:08,319 INFO L93 Difference]: Finished difference Result 448 states and 621 transitions. [2022-10-17 10:48:08,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 448 states and 621 transitions. [2022-10-17 10:48:08,323 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 392 [2022-10-17 10:48:08,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 448 states to 445 states and 617 transitions. [2022-10-17 10:48:08,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 445 [2022-10-17 10:48:08,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 445 [2022-10-17 10:48:08,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 445 states and 617 transitions. [2022-10-17 10:48:08,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:08,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 445 states and 617 transitions. [2022-10-17 10:48:08,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states and 617 transitions. [2022-10-17 10:48:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 372. [2022-10-17 10:48:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 372 states have (on average 1.403225806451613) internal successors, (522), 371 states have internal predecessors, (522), 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 10:48:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 522 transitions. [2022-10-17 10:48:08,339 INFO L240 hiAutomatonCegarLoop]: Abstraction has 372 states and 522 transitions. [2022-10-17 10:48:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:48:08,340 INFO L428 stractBuchiCegarLoop]: Abstraction has 372 states and 522 transitions. [2022-10-17 10:48:08,340 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-10-17 10:48:08,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 372 states and 522 transitions. [2022-10-17 10:48:08,342 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2022-10-17 10:48:08,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:08,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:08,344 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:08,344 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-17 10:48:08,344 INFO L748 eck$LassoCheckResult]: Stem: 3007#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(15, 2); 2994#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 2981#L59 assume !(0 == mp_add_~a3~0#1 % 256); 2982#L59-1 mp_add_~nb~0#1 := 4; 3001#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 2988#L71 assume !(0 == mp_add_~b2~0#1 % 256); 2989#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 3025#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; 3146#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3137#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; 3135#L84-2 [2022-10-17 10:48:08,344 INFO L750 eck$LassoCheckResult]: Loop: 3135#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 3134#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 3132#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 3128#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 3123#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 3121#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 3120#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 3119#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 3118#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 3045#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 3046#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; 3117#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3116#L84 assume !(0 == mp_add_~i~0#1 % 256); 3115#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 3114#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 3112#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 3108#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 3103#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 3101#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 3100#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 3099#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 3098#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 3097#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 3096#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; 3094#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3093#L84 assume !(0 == mp_add_~i~0#1 % 256); 3092#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 3091#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 3087#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 3082#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 3084#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 3251#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 3054#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 3052#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 3049#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 3050#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 3038#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; 3039#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3147#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; 3135#L84-2 [2022-10-17 10:48:08,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 7 times [2022-10-17 10:48:08,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:08,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762782774] [2022-10-17 10:48:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:08,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:08,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:08,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:08,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1024241828, now seen corresponding path program 1 times [2022-10-17 10:48:08,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:08,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82409760] [2022-10-17 10:48:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:08,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:08,639 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:08,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82409760] [2022-10-17 10:48:08,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82409760] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:08,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780961676] [2022-10-17 10:48:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:08,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:08,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:08,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:48:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:08,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:48:08,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:48:08,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:48:08,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780961676] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:08,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:08,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-10-17 10:48:08,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583543539] [2022-10-17 10:48:08,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:08,894 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:08,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:48:08,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:48:08,895 INFO L87 Difference]: Start difference. First operand 372 states and 522 transitions. cyclomatic complexity: 153 Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 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 10:48:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:09,555 INFO L93 Difference]: Finished difference Result 599 states and 800 transitions. [2022-10-17 10:48:09,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 599 states and 800 transitions. [2022-10-17 10:48:09,561 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 564 [2022-10-17 10:48:09,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 599 states to 598 states and 799 transitions. [2022-10-17 10:48:09,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 598 [2022-10-17 10:48:09,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 598 [2022-10-17 10:48:09,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 598 states and 799 transitions. [2022-10-17 10:48:09,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:09,568 INFO L218 hiAutomatonCegarLoop]: Abstraction has 598 states and 799 transitions. [2022-10-17 10:48:09,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states and 799 transitions. [2022-10-17 10:48:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 364. [2022-10-17 10:48:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 364 states have (on average 1.3626373626373627) internal successors, (496), 363 states have internal predecessors, (496), 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 10:48:09,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 496 transitions. [2022-10-17 10:48:09,579 INFO L240 hiAutomatonCegarLoop]: Abstraction has 364 states and 496 transitions. [2022-10-17 10:48:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:48:09,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 364 states and 496 transitions. [2022-10-17 10:48:09,582 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-10-17 10:48:09,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 364 states and 496 transitions. [2022-10-17 10:48:09,584 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 336 [2022-10-17 10:48:09,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:09,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:09,588 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:09,589 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 7, 7, 6, 6, 6, 6, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:09,589 INFO L748 eck$LassoCheckResult]: Stem: 4232#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(15, 2); 4217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 4209#L59 assume !(0 == mp_add_~a3~0#1 % 256); 4210#L59-1 mp_add_~nb~0#1 := 4; 4224#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 4213#L71 assume !(0 == mp_add_~b2~0#1 % 256); 4214#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 4331#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; 4329#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4330#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; 4395#L84-2 [2022-10-17 10:48:09,591 INFO L750 eck$LassoCheckResult]: Loop: 4395#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 4531#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4530#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4308#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4307#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4282#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 4283#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4278#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4279#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4274#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4275#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; 4524#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4544#L84 assume !(0 == mp_add_~i~0#1 % 256); 4520#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 4393#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4518#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4514#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4511#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4509#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4499#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 4364#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4365#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4328#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4316#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; 4247#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 4219#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4204#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4206#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4225#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4226#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 4260#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4318#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4301#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; 4302#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 4472#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4469#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4467#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4450#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4211#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4212#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 4437#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4233#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; 4234#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 4523#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4375#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4532#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4466#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4464#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4239#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4240#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4241#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; 4389#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 4376#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4370#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4367#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4368#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4413#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4412#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4411#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4410#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; 4409#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 4408#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4336#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 4263#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4261#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4259#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4258#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4257#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4255#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; 4256#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4394#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; 4395#L84-2 [2022-10-17 10:48:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 8 times [2022-10-17 10:48:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:09,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208880143] [2022-10-17 10:48:09,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:09,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:09,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:09,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:09,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1261898314, now seen corresponding path program 1 times [2022-10-17 10:48:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:09,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083832366] [2022-10-17 10:48:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:09,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-10-17 10:48:09,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:09,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083832366] [2022-10-17 10:48:09,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083832366] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:09,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566976588] [2022-10-17 10:48:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:09,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:09,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:10,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:10,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:48:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:10,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:48:10,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-10-17 10:48:10,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-10-17 10:48:10,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566976588] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:10,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:10,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2022-10-17 10:48:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685212564] [2022-10-17 10:48:10,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:10,342 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:48:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:48:10,343 INFO L87 Difference]: Start difference. First operand 364 states and 496 transitions. cyclomatic complexity: 135 Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:10,529 INFO L93 Difference]: Finished difference Result 776 states and 1026 transitions. [2022-10-17 10:48:10,529 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 776 states and 1026 transitions. [2022-10-17 10:48:10,536 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 739 [2022-10-17 10:48:10,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 776 states to 776 states and 1026 transitions. [2022-10-17 10:48:10,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 776 [2022-10-17 10:48:10,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 776 [2022-10-17 10:48:10,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 776 states and 1026 transitions. [2022-10-17 10:48:10,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:10,546 INFO L218 hiAutomatonCegarLoop]: Abstraction has 776 states and 1026 transitions. [2022-10-17 10:48:10,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states and 1026 transitions. [2022-10-17 10:48:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 463. [2022-10-17 10:48:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 463 states have (on average 1.3585313174946003) internal successors, (629), 462 states have internal predecessors, (629), 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 10:48:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 629 transitions. [2022-10-17 10:48:10,560 INFO L240 hiAutomatonCegarLoop]: Abstraction has 463 states and 629 transitions. [2022-10-17 10:48:10,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:48:10,562 INFO L428 stractBuchiCegarLoop]: Abstraction has 463 states and 629 transitions. [2022-10-17 10:48:10,562 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-10-17 10:48:10,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 463 states and 629 transitions. [2022-10-17 10:48:10,565 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 435 [2022-10-17 10:48:10,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:10,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:10,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:10,567 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:10,567 INFO L748 eck$LassoCheckResult]: Stem: 5809#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(15, 2); 5796#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 5780#L59 assume !(0 == mp_add_~a3~0#1 % 256); 5781#L59-1 mp_add_~nb~0#1 := 4; 5803#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 5789#L71 assume !(0 == mp_add_~b2~0#1 % 256); 5790#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 5886#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; 5887#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 6141#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; 5837#L84-2 [2022-10-17 10:48:10,573 INFO L750 eck$LassoCheckResult]: Loop: 5837#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6139#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6137#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6134#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6130#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 6131#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 6146#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6145#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6132#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6128#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6126#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; 6123#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 5807#L84 assume !(0 == mp_add_~i~0#1 % 256); 5808#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 6057#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6205#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6204#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5782#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 5783#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 5794#L96-8 mp_add_~carry~0#1 := 1; 5795#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6224#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 5885#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6211#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6190#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6191#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; 6184#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6183#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5788#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 6216#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 6215#L96-8 mp_add_~carry~0#1 := 1; 6214#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6213#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6207#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 5848#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6194#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6195#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; 6066#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 5798#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6199#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 6196#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 6182#L96-8 mp_add_~carry~0#1 := 1; 6156#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6153#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6150#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6147#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 6109#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6107#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; 6104#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6101#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6030#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 6077#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 6072#L96-8 mp_add_~carry~0#1 := 1; 6069#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6063#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6062#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6061#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5877#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6035#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; 6033#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6031#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6026#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 6023#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 6022#L96-8 mp_add_~carry~0#1 := 1; 5888#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 5889#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 5883#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 5882#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5876#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 5875#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; 5871#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 5866#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5868#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 5880#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 5850#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 5852#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 5845#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5846#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 5841#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; 5839#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 5836#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; 5837#L84-2 [2022-10-17 10:48:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:10,574 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 9 times [2022-10-17 10:48:10,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:10,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857564152] [2022-10-17 10:48:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:10,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:10,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:10,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash -946314949, now seen corresponding path program 1 times [2022-10-17 10:48:10,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:10,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403485049] [2022-10-17 10:48:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:10,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-17 10:48:10,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:10,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403485049] [2022-10-17 10:48:10,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403485049] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:10,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:10,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:48:10,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506159905] [2022-10-17 10:48:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:10,706 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:10,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:48:10,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:48:10,707 INFO L87 Difference]: Start difference. First operand 463 states and 629 transitions. cyclomatic complexity: 169 Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 10:48:10,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:10,773 INFO L93 Difference]: Finished difference Result 639 states and 830 transitions. [2022-10-17 10:48:10,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 639 states and 830 transitions. [2022-10-17 10:48:10,778 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 553 [2022-10-17 10:48:10,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 639 states to 587 states and 778 transitions. [2022-10-17 10:48:10,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2022-10-17 10:48:10,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2022-10-17 10:48:10,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 778 transitions. [2022-10-17 10:48:10,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:10,786 INFO L218 hiAutomatonCegarLoop]: Abstraction has 587 states and 778 transitions. [2022-10-17 10:48:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 778 transitions. [2022-10-17 10:48:10,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 440. [2022-10-17 10:48:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 440 states have (on average 1.3454545454545455) internal successors, (592), 439 states have internal predecessors, (592), 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 10:48:10,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 592 transitions. [2022-10-17 10:48:10,797 INFO L240 hiAutomatonCegarLoop]: Abstraction has 440 states and 592 transitions. [2022-10-17 10:48:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:48:10,799 INFO L428 stractBuchiCegarLoop]: Abstraction has 440 states and 592 transitions. [2022-10-17 10:48:10,800 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-10-17 10:48:10,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 440 states and 592 transitions. [2022-10-17 10:48:10,802 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 412 [2022-10-17 10:48:10,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:10,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:10,804 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:10,804 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:10,805 INFO L748 eck$LassoCheckResult]: Stem: 6916#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(15, 2); 6903#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 6889#L59 assume !(0 == mp_add_~a3~0#1 % 256); 6890#L59-1 mp_add_~nb~0#1 := 4; 6911#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 6896#L71 assume !(0 == mp_add_~b2~0#1 % 256); 6897#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 6918#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; 6919#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7263#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; 7251#L84-2 [2022-10-17 10:48:10,806 INFO L750 eck$LassoCheckResult]: Loop: 7251#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 7247#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 7243#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 7234#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7232#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 7230#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 7225#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7221#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7222#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7311#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6998#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; 6999#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7300#L84 assume !(0 == mp_add_~i~0#1 % 256); 7295#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 7023#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6904#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6905#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6895#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 6907#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 6901#L96-8 mp_add_~carry~0#1 := 1; 6902#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7307#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 6990#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7306#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7303#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7301#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; 6931#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6932#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6891#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 6892#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6912#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6899#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 6900#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6924#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6927#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; 6951#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7238#L84 assume !(0 == mp_add_~i~0#1 % 256); 7304#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6920#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6921#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 7236#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7202#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 7289#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 7287#L96-8 mp_add_~carry~0#1 := 1; 7286#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7285#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7284#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7283#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 6985#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6995#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; 6996#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 7192#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7171#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 7012#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7165#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7060#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7058#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7029#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7027#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; 7025#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7024#L84 assume !(0 == mp_add_~i~0#1 % 256); 7022#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 7020#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 7018#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 7016#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7015#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 7149#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 7148#L96-8 mp_add_~carry~0#1 := 1; 7147#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6989#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6991#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6983#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6984#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6978#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; 6979#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6973#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6975#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 6969#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6970#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6964#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6965#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6959#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6960#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; 7028#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7256#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; 7251#L84-2 [2022-10-17 10:48:10,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 10 times [2022-10-17 10:48:10,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:10,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214947504] [2022-10-17 10:48:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:10,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:10,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash -110068253, now seen corresponding path program 1 times [2022-10-17 10:48:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:10,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338037761] [2022-10-17 10:48:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:10,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:11,085 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-10-17 10:48:11,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:11,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338037761] [2022-10-17 10:48:11,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338037761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:11,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:11,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:48:11,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770394790] [2022-10-17 10:48:11,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:11,087 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:11,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:11,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:48:11,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:48:11,088 INFO L87 Difference]: Start difference. First operand 440 states and 592 transitions. cyclomatic complexity: 155 Second operand has 7 states, 7 states have (on average 7.285714285714286) 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 10:48:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:11,515 INFO L93 Difference]: Finished difference Result 737 states and 972 transitions. [2022-10-17 10:48:11,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 737 states and 972 transitions. [2022-10-17 10:48:11,521 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 658 [2022-10-17 10:48:11,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 737 states to 735 states and 969 transitions. [2022-10-17 10:48:11,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 735 [2022-10-17 10:48:11,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 735 [2022-10-17 10:48:11,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 735 states and 969 transitions. [2022-10-17 10:48:11,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:11,530 INFO L218 hiAutomatonCegarLoop]: Abstraction has 735 states and 969 transitions. [2022-10-17 10:48:11,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states and 969 transitions. [2022-10-17 10:48:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 609. [2022-10-17 10:48:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 609 states have (on average 1.3497536945812807) internal successors, (822), 608 states have internal predecessors, (822), 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 10:48:11,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 822 transitions. [2022-10-17 10:48:11,545 INFO L240 hiAutomatonCegarLoop]: Abstraction has 609 states and 822 transitions. [2022-10-17 10:48:11,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:48:11,546 INFO L428 stractBuchiCegarLoop]: Abstraction has 609 states and 822 transitions. [2022-10-17 10:48:11,546 INFO L335 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2022-10-17 10:48:11,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 609 states and 822 transitions. [2022-10-17 10:48:11,549 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 581 [2022-10-17 10:48:11,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:11,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:11,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:11,551 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:11,551 INFO L748 eck$LassoCheckResult]: Stem: 8118#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(15, 2); 8105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 8091#L59 assume !(0 == mp_add_~a3~0#1 % 256); 8092#L59-1 mp_add_~nb~0#1 := 4; 8113#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 8098#L71 assume !(0 == mp_add_~b2~0#1 % 256); 8099#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 8136#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; 8447#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8445#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; 8443#L84-2 [2022-10-17 10:48:11,551 INFO L750 eck$LassoCheckResult]: Loop: 8443#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 8442#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 8440#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 8436#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8430#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 8432#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 8425#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8426#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8678#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8676#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8674#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; 8419#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8418#L84 assume !(0 == mp_add_~i~0#1 % 256); 8417#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 8222#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 8415#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 8412#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8406#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 8408#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8650#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 8255#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8649#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8648#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8383#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; 8384#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8379#L84 assume !(0 == mp_add_~i~0#1 % 256); 8371#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 8367#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 8220#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 8365#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8361#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 8362#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8397#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8395#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 8394#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8393#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8392#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; 8390#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8340#L84 assume !(0 == mp_add_~i~0#1 % 256); 8389#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 8388#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 8387#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 8386#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8336#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 8319#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 8314#L96-8 mp_add_~carry~0#1 := 1; 8310#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8303#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8297#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8293#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 8194#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8289#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; 8288#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 8284#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8285#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 8359#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8396#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8251#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8248#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8230#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8227#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; 8228#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 8448#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 8278#L90 assume !(0 == mp_add_~i~0#1 % 256); 8276#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 8272#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 8273#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 8360#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 8260#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 8201#L96-8 mp_add_~carry~0#1 := 1; 8202#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8197#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8195#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8192#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8193#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8241#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; 8239#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 8237#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8236#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 8235#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 8234#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 8233#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8232#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 8231#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 8229#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; 8224#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 8225#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; 8443#L84-2 [2022-10-17 10:48:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 11 times [2022-10-17 10:48:11,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:11,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340626214] [2022-10-17 10:48:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:11,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:11,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:11,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1842182454, now seen corresponding path program 1 times [2022-10-17 10:48:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:11,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249091877] [2022-10-17 10:48:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:11,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 107 proven. 64 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-17 10:48:11,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:11,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249091877] [2022-10-17 10:48:11,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249091877] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:11,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878865284] [2022-10-17 10:48:11,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:11,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:11,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:11,784 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:11,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:48:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:11,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:48:11,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:11,985 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-17 10:48:11,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:48:11,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878865284] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:11,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:48:11,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-10-17 10:48:11,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91246304] [2022-10-17 10:48:11,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:11,987 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:11,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:11,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:48:11,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:48:11,988 INFO L87 Difference]: Start difference. First operand 609 states and 822 transitions. cyclomatic complexity: 217 Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:12,088 INFO L93 Difference]: Finished difference Result 1047 states and 1364 transitions. [2022-10-17 10:48:12,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1047 states and 1364 transitions. [2022-10-17 10:48:12,096 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 895 [2022-10-17 10:48:12,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1047 states to 1035 states and 1349 transitions. [2022-10-17 10:48:12,105 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1035 [2022-10-17 10:48:12,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1035 [2022-10-17 10:48:12,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1349 transitions. [2022-10-17 10:48:12,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:12,108 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1035 states and 1349 transitions. [2022-10-17 10:48:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1349 transitions. [2022-10-17 10:48:12,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 844. [2022-10-17 10:48:12,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 844 states have (on average 1.3270142180094786) internal successors, (1120), 843 states have internal predecessors, (1120), 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 10:48:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1120 transitions. [2022-10-17 10:48:12,128 INFO L240 hiAutomatonCegarLoop]: Abstraction has 844 states and 1120 transitions. [2022-10-17 10:48:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:48:12,129 INFO L428 stractBuchiCegarLoop]: Abstraction has 844 states and 1120 transitions. [2022-10-17 10:48:12,129 INFO L335 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2022-10-17 10:48:12,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 844 states and 1120 transitions. [2022-10-17 10:48:12,134 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 743 [2022-10-17 10:48:12,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:12,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:12,135 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:12,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:12,136 INFO L748 eck$LassoCheckResult]: Stem: 10042#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(15, 2); 10028#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 10014#L59 assume !(0 == mp_add_~a3~0#1 % 256); 10015#L59-1 mp_add_~nb~0#1 := 4; 10037#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 10021#L71 assume !(0 == mp_add_~b2~0#1 % 256); 10022#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 10060#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; 10360#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10357#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; 10358#L84-2 [2022-10-17 10:48:12,136 INFO L750 eck$LassoCheckResult]: Loop: 10358#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 10353#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 10354#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10769#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 10767#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; 10766#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 10765#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 10763#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 10759#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 10755#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 10751#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10749#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10747#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10745#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10742#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; 10743#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10738#L84 assume !(0 == mp_add_~i~0#1 % 256); 10737#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 10138#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 10735#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10733#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10730#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 10728#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10726#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 10540#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10576#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10577#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10721#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; 10720#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10566#L84 assume !(0 == mp_add_~i~0#1 % 256); 10565#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 10564#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 10214#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10560#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10556#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 10554#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10552#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10549#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 10508#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10509#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10504#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; 10505#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 10500#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 10494#L90 assume !(0 == mp_add_~i~0#1 % 256); 10497#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 10495#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 10492#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; 10489#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 10486#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 10485#L96-8 mp_add_~carry~0#1 := 1; 10484#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10483#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10482#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10481#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 10113#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10445#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; 10478#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 10479#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10365#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 10366#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10341#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10209#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10208#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10092#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10150#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; 10151#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 10211#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 10210#L90 assume !(0 == mp_add_~i~0#1 % 256); 10147#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 10149#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 10203#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 10529#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 10524#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 10520#L96-8 mp_add_~carry~0#1 := 1; 10518#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10516#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10114#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10112#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10110#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10111#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; 10105#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 10107#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10101#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 10102#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10096#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10098#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10090#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10091#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10152#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; 10153#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10359#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; 10358#L84-2 [2022-10-17 10:48:12,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:12,137 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 12 times [2022-10-17 10:48:12,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:12,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693966814] [2022-10-17 10:48:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:12,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:12,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:12,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:12,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:12,159 INFO L85 PathProgramCache]: Analyzing trace with hash -713828190, now seen corresponding path program 1 times [2022-10-17 10:48:12,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:12,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381076119] [2022-10-17 10:48:12,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:12,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 142 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-17 10:48:12,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:12,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381076119] [2022-10-17 10:48:12,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381076119] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:12,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280824042] [2022-10-17 10:48:12,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:12,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:12,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:12,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:12,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:48:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:12,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 148 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-17 10:48:12,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:12,654 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 148 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-17 10:48:12,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280824042] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:12,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:12,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2022-10-17 10:48:12,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094402398] [2022-10-17 10:48:12,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:12,656 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:12,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:12,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:48:12,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:48:12,657 INFO L87 Difference]: Start difference. First operand 844 states and 1120 transitions. cyclomatic complexity: 281 Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 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 10:48:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:13,651 INFO L93 Difference]: Finished difference Result 2651 states and 3555 transitions. [2022-10-17 10:48:13,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2651 states and 3555 transitions. [2022-10-17 10:48:13,673 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 2057 [2022-10-17 10:48:13,694 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2651 states to 2589 states and 3469 transitions. [2022-10-17 10:48:13,694 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2589 [2022-10-17 10:48:13,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2589 [2022-10-17 10:48:13,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2589 states and 3469 transitions. [2022-10-17 10:48:13,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:13,701 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2589 states and 3469 transitions. [2022-10-17 10:48:13,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states and 3469 transitions. [2022-10-17 10:48:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2114. [2022-10-17 10:48:13,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 2114 states have (on average 1.378902554399243) internal successors, (2915), 2113 states have internal predecessors, (2915), 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 10:48:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2915 transitions. [2022-10-17 10:48:13,759 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2114 states and 2915 transitions. [2022-10-17 10:48:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-17 10:48:13,760 INFO L428 stractBuchiCegarLoop]: Abstraction has 2114 states and 2915 transitions. [2022-10-17 10:48:13,761 INFO L335 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2022-10-17 10:48:13,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2114 states and 2915 transitions. [2022-10-17 10:48:13,774 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1869 [2022-10-17 10:48:13,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:13,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:13,775 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:13,775 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:13,775 INFO L748 eck$LassoCheckResult]: Stem: 14138#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(15, 2); 14123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 14114#L59 assume !(0 == mp_add_~a3~0#1 % 256); 14115#L59-1 mp_add_~nb~0#1 := 4; 14131#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 14118#L71 assume !(0 == mp_add_~b2~0#1 % 256); 14119#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 14139#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; 14140#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14703#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; 14704#L84-2 [2022-10-17 10:48:13,776 INFO L750 eck$LassoCheckResult]: Loop: 14704#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 16130#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 16128#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 16127#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14698#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; 14697#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 14696#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14694#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14689#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 14691#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 14684#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14685#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14681#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14680#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14678#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; 14679#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14673#L84 assume !(0 == mp_add_~i~0#1 % 256); 14671#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 14400#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14667#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14668#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14664#L90 assume !(0 == mp_add_~i~0#1 % 256); 14663#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; 14560#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14662#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14655#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 14647#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14648#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 14266#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14642#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14634#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14635#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; 14674#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14672#L84 assume !(0 == mp_add_~i~0#1 % 256); 14608#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 14607#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 14398#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14603#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14601#L90 assume !(0 == mp_add_~i~0#1 % 256); 14602#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 14590#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 14379#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14584#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 14586#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14573#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14574#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 14512#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14513#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14505#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; 14506#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 14481#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14480#L90 assume !(0 == mp_add_~i~0#1 % 256); 14479#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 14478#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14477#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; 14475#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 14476#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 14529#L96-8 mp_add_~carry~0#1 := 1; 14528#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14527#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14526#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14455#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 14420#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14451#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; 14449#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 14450#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14490#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 14540#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14539#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14424#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14423#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14289#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14404#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; 14405#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 14705#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14387#L90 assume !(0 == mp_add_~i~0#1 % 256); 14383#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 14384#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14372#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14373#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 14436#L96 assume 0 == mp_add_~partial_sum~0#1;mp_add_~partial_sum~0#1 := 0; 14433#L96-8 mp_add_~carry~0#1 := 1; 14430#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14431#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14421#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14419#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14418#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14417#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; 14415#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 14413#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14412#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 14411#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14410#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14409#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14408#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14407#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14406#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; 14402#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14403#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; 14704#L84-2 [2022-10-17 10:48:13,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:13,776 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 13 times [2022-10-17 10:48:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:13,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464995828] [2022-10-17 10:48:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:13,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:13,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:13,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:13,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:13,803 INFO L85 PathProgramCache]: Analyzing trace with hash 883914334, now seen corresponding path program 1 times [2022-10-17 10:48:13,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:13,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058775775] [2022-10-17 10:48:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:13,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-17 10:48:13,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:13,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058775775] [2022-10-17 10:48:13,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058775775] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:13,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:13,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:13,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647541557] [2022-10-17 10:48:13,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:13,926 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:13,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:13,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:13,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:13,927 INFO L87 Difference]: Start difference. First operand 2114 states and 2915 transitions. cyclomatic complexity: 812 Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:13,961 INFO L93 Difference]: Finished difference Result 2114 states and 2846 transitions. [2022-10-17 10:48:13,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2114 states and 2846 transitions. [2022-10-17 10:48:13,979 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1869 [2022-10-17 10:48:13,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2114 states to 2114 states and 2846 transitions. [2022-10-17 10:48:13,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2114 [2022-10-17 10:48:13,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2114 [2022-10-17 10:48:13,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2114 states and 2846 transitions. [2022-10-17 10:48:14,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:14,002 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2114 states and 2846 transitions. [2022-10-17 10:48:14,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states and 2846 transitions. [2022-10-17 10:48:14,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 2114. [2022-10-17 10:48:14,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 2114 states have (on average 1.346263008514664) internal successors, (2846), 2113 states have internal predecessors, (2846), 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 10:48:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2846 transitions. [2022-10-17 10:48:14,055 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2114 states and 2846 transitions. [2022-10-17 10:48:14,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:14,056 INFO L428 stractBuchiCegarLoop]: Abstraction has 2114 states and 2846 transitions. [2022-10-17 10:48:14,056 INFO L335 stractBuchiCegarLoop]: ======== Iteration 17 ============ [2022-10-17 10:48:14,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2114 states and 2846 transitions. [2022-10-17 10:48:14,068 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1869 [2022-10-17 10:48:14,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:14,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:14,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:14,070 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:14,070 INFO L748 eck$LassoCheckResult]: Stem: 18371#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(15, 2); 18356#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 18347#L59 assume !(0 == mp_add_~a3~0#1 % 256); 18348#L59-1 mp_add_~nb~0#1 := 4; 18365#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 18351#L71 assume !(0 == mp_add_~b2~0#1 % 256); 18352#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 18372#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; 18373#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 19062#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; 19061#L84-2 [2022-10-17 10:48:14,070 INFO L750 eck$LassoCheckResult]: Loop: 19061#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 19060#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 19058#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 19059#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 19056#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; 19055#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 19053#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 19051#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 19047#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 19049#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 19042#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 19043#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 19038#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 19039#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 19034#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; 19035#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 19029#L84 assume !(0 == mp_add_~i~0#1 % 256); 19027#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 18644#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 19025#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 19021#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 19019#L90 assume !(0 == mp_add_~i~0#1 % 256); 19017#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; 18630#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 19014#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 19012#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 19007#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 19002#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 18499#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 18997#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 18995#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 18991#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; 18992#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 19028#L84 assume !(0 == mp_add_~i~0#1 % 256); 18854#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 18853#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 18642#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 18849#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 18847#L90 assume !(0 == mp_add_~i~0#1 % 256); 18848#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 18843#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 18587#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 18839#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 18829#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 18830#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 18791#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 18792#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 18785#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 18786#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; 18779#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 18725#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 18724#L90 assume !(0 == mp_add_~i~0#1 % 256); 18723#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 18722#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 18721#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; 18719#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 18718#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 18717#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 18716#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 18715#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 18714#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 18713#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; 18711#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 18708#L84 assume !(0 == mp_add_~i~0#1 % 256); 18709#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 18699#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 18700#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 18689#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 18688#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 18674#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 18669#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 18670#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 18653#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 18526#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 18649#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; 18650#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 18645#L84 assume !(0 == mp_add_~i~0#1 % 256); 18643#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 18641#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 18639#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 18636#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 18620#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255; 18677#L96 assume !(0 == mp_add_~partial_sum~0#1); 18681#L96-2 assume !false; 18680#L96-4 assume !false; 18679#L96-6 assume !(mp_add_~partial_sum~0#1 >= 0);mp_add_~partial_sum~0#1 := mp_add_#t~nondet1#1;havoc mp_add_#t~nondet1#1; 18678#L96-8 mp_add_~carry~0#1 := 1; 18675#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 18671#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 18673#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 18665#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 18664#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 18663#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; 18661#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 18659#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 18658#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 18657#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 18656#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 18654#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 18652#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 18651#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 18648#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; 18646#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 18647#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; 19061#L84-2 [2022-10-17 10:48:14,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:14,071 INFO L85 PathProgramCache]: Analyzing trace with hash -184863620, now seen corresponding path program 14 times [2022-10-17 10:48:14,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:14,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891501803] [2022-10-17 10:48:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:14,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:14,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:14,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:14,093 INFO L85 PathProgramCache]: Analyzing trace with hash -845879228, now seen corresponding path program 1 times [2022-10-17 10:48:14,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:14,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876822624] [2022-10-17 10:48:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:14,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:14,235 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 154 proven. 7 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-17 10:48:14,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:14,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876822624] [2022-10-17 10:48:14,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876822624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:14,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3668516] [2022-10-17 10:48:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:14,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:14,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:14,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:48:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:14,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:14,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-17 10:48:14,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 177 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-10-17 10:48:14,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3668516] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:14,474 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:14,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-10-17 10:48:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224385054] [2022-10-17 10:48:14,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:14,475 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:14,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:14,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:48:14,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:48:14,476 INFO L87 Difference]: Start difference. First operand 2114 states and 2846 transitions. cyclomatic complexity: 743 Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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 10:48:14,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:14,879 INFO L93 Difference]: Finished difference Result 1104 states and 1372 transitions. [2022-10-17 10:48:14,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1104 states and 1372 transitions. [2022-10-17 10:48:14,887 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 680 [2022-10-17 10:48:14,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1104 states to 864 states and 1132 transitions. [2022-10-17 10:48:14,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 864 [2022-10-17 10:48:14,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 864 [2022-10-17 10:48:14,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 864 states and 1132 transitions. [2022-10-17 10:48:14,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:14,897 INFO L218 hiAutomatonCegarLoop]: Abstraction has 864 states and 1132 transitions. [2022-10-17 10:48:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states and 1132 transitions. [2022-10-17 10:48:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 503. [2022-10-17 10:48:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 503 states have (on average 1.3001988071570576) internal successors, (654), 502 states have internal predecessors, (654), 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 10:48:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 654 transitions. [2022-10-17 10:48:14,910 INFO L240 hiAutomatonCegarLoop]: Abstraction has 503 states and 654 transitions. [2022-10-17 10:48:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:48:14,911 INFO L428 stractBuchiCegarLoop]: Abstraction has 503 states and 654 transitions. [2022-10-17 10:48:14,911 INFO L335 stractBuchiCegarLoop]: ======== Iteration 18 ============ [2022-10-17 10:48:14,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 654 transitions. [2022-10-17 10:48:14,914 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 412 [2022-10-17 10:48:14,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:14,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:14,915 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:14,915 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:14,915 INFO L748 eck$LassoCheckResult]: Stem: 22231#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(15, 2); 22221#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 22208#L59 assume !(0 == mp_add_~a3~0#1 % 256); 22209#L59-1 mp_add_~nb~0#1 := 4; 22226#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 22216#L71 assume !(0 == mp_add_~b2~0#1 % 256); 22217#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 22303#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; 22301#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 22299#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; 22297#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 22296#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 22294#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 22291#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 22287#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 22288#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 22283#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 22284#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 22279#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 22280#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 22275#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; 22276#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 22693#L84 assume !(0 == mp_add_~i~0#1 % 256); 22689#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 22455#L85-1 [2022-10-17 10:48:14,916 INFO L750 eck$LassoCheckResult]: Loop: 22455#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 22686#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 22685#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 22435#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 22682#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 22677#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 22463#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 22515#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 22471#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 22472#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; 22700#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 22699#L84 assume !(0 == mp_add_~i~0#1 % 256); 22698#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 22697#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 22222#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 22223#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 22252#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 22683#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 22681#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 22514#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 22314#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 22268#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 22269#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; 22696#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 22694#L84 assume !(0 == mp_add_~i~0#1 % 256); 22249#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 22235#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 22236#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 22695#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 22210#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 22211#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 22227#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 22219#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 22220#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 22241#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 22244#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; 22246#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 22229#L84 assume !(0 == mp_add_~i~0#1 % 256); 22230#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 22455#L85-1 [2022-10-17 10:48:14,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash 19635510, now seen corresponding path program 1 times [2022-10-17 10:48:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:14,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679187224] [2022-10-17 10:48:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:15,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679187224] [2022-10-17 10:48:15,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679187224] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:15,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:15,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:15,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243429031] [2022-10-17 10:48:15,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:15,025 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1205102556, now seen corresponding path program 1 times [2022-10-17 10:48:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:15,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87553771] [2022-10-17 10:48:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:15,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87553771] [2022-10-17 10:48:15,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87553771] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841740385] [2022-10-17 10:48:15,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:15,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:15,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:15,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:15,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-17 10:48:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:15,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:48:15,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-17 10:48:15,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:48:15,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841740385] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:15,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:48:15,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-17 10:48:15,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281428848] [2022-10-17 10:48:15,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:15,283 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:15,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:15,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:48:15,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:48:15,284 INFO L87 Difference]: Start difference. First operand 503 states and 654 transitions. cyclomatic complexity: 158 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 10:48:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:15,576 INFO L93 Difference]: Finished difference Result 1451 states and 1894 transitions. [2022-10-17 10:48:15,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1451 states and 1894 transitions. [2022-10-17 10:48:15,584 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 1236 [2022-10-17 10:48:15,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1451 states to 1451 states and 1894 transitions. [2022-10-17 10:48:15,596 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1451 [2022-10-17 10:48:15,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1451 [2022-10-17 10:48:15,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1451 states and 1894 transitions. [2022-10-17 10:48:15,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:15,600 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1451 states and 1894 transitions. [2022-10-17 10:48:15,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states and 1894 transitions. [2022-10-17 10:48:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 503. [2022-10-17 10:48:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 503 states have (on average 1.3001988071570576) internal successors, (654), 502 states have internal predecessors, (654), 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 10:48:15,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 654 transitions. [2022-10-17 10:48:15,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 503 states and 654 transitions. [2022-10-17 10:48:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:48:15,619 INFO L428 stractBuchiCegarLoop]: Abstraction has 503 states and 654 transitions. [2022-10-17 10:48:15,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 19 ============ [2022-10-17 10:48:15,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 654 transitions. [2022-10-17 10:48:15,621 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 412 [2022-10-17 10:48:15,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:15,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:15,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:15,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:15,622 INFO L748 eck$LassoCheckResult]: Stem: 24315#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(15, 2); 24305#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 24294#L59 assume !(0 == mp_add_~a3~0#1 % 256); 24295#L59-1 mp_add_~nb~0#1 := 4; 24310#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 24300#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 24302#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 24332#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 24379#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; 24378#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 24377#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; 24376#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 24375#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 24374#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 24371#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 24373#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 24567#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 24566#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 24565#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 24564#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 24563#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 24361#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; 24362#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 24781#L84 assume !(0 == mp_add_~i~0#1 % 256); 24778#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 24583#L85-1 [2022-10-17 10:48:15,623 INFO L750 eck$LassoCheckResult]: Loop: 24583#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 24306#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 24307#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 24333#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 24791#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 24789#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 24392#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 24786#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 24785#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 24784#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; 24783#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 24780#L84 assume !(0 == mp_add_~i~0#1 % 256); 24777#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 24768#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 24617#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 24767#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 24766#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 24765#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 24764#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 24763#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 24390#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 24714#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 24627#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; 24628#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 24624#L84 assume !(0 == mp_add_~i~0#1 % 256); 24621#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 24622#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 24614#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 24615#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 24607#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 24608#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 24599#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 24600#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 24592#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 24589#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 24348#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; 24349#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 24623#L84 assume !(0 == mp_add_~i~0#1 % 256); 24620#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 24583#L85-1 [2022-10-17 10:48:15,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1233837692, now seen corresponding path program 1 times [2022-10-17 10:48:15,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:15,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235616314] [2022-10-17 10:48:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:15,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:15,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:15,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235616314] [2022-10-17 10:48:15,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235616314] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:15,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:15,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:48:15,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994148133] [2022-10-17 10:48:15,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:15,772 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:15,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1205102556, now seen corresponding path program 2 times [2022-10-17 10:48:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:15,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883344684] [2022-10-17 10:48:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:15,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:15,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883344684] [2022-10-17 10:48:15,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883344684] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:15,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922818991] [2022-10-17 10:48:15,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:48:15,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:15,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:15,901 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:15,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-17 10:48:15,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:48:15,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:48:15,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:48:15,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 10:48:15,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:48:15,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922818991] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:15,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:48:15,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-17 10:48:15,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927598993] [2022-10-17 10:48:15,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:16,000 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:16,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:16,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:48:16,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:48:16,001 INFO L87 Difference]: Start difference. First operand 503 states and 654 transitions. cyclomatic complexity: 158 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 10:48:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:16,630 INFO L93 Difference]: Finished difference Result 1919 states and 2506 transitions. [2022-10-17 10:48:16,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1919 states and 2506 transitions. [2022-10-17 10:48:16,644 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 1648 [2022-10-17 10:48:16,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1919 states to 1919 states and 2506 transitions. [2022-10-17 10:48:16,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1919 [2022-10-17 10:48:16,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1919 [2022-10-17 10:48:16,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1919 states and 2506 transitions. [2022-10-17 10:48:16,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:16,667 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1919 states and 2506 transitions. [2022-10-17 10:48:16,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states and 2506 transitions. [2022-10-17 10:48:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 485. [2022-10-17 10:48:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 485 states have (on average 1.3072164948453608) internal successors, (634), 484 states have internal predecessors, (634), 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 10:48:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 634 transitions. [2022-10-17 10:48:16,699 INFO L240 hiAutomatonCegarLoop]: Abstraction has 485 states and 634 transitions. [2022-10-17 10:48:16,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:48:16,700 INFO L428 stractBuchiCegarLoop]: Abstraction has 485 states and 634 transitions. [2022-10-17 10:48:16,700 INFO L335 stractBuchiCegarLoop]: ======== Iteration 20 ============ [2022-10-17 10:48:16,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 485 states and 634 transitions. [2022-10-17 10:48:16,702 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 412 [2022-10-17 10:48:16,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:16,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:16,703 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:16,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:16,704 INFO L748 eck$LassoCheckResult]: Stem: 26874#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(15, 2); 26865#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 26854#L59 assume !(0 == mp_add_~a3~0#1 % 256); 26855#L59-1 mp_add_~nb~0#1 := 4; 26870#L69 assume !(0 == mp_add_~b3~0#1 % 256); 26861#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 26877#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; 26878#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 26934#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; 26933#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 26932#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 26931#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 26930#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 26929#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; 26928#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 26927#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 26926#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 26925#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 26924#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 26923#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 26922#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 26921#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 26920#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 26918#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; 26919#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 27103#L84 assume !(0 == mp_add_~i~0#1 % 256); 27102#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 26968#L85-1 [2022-10-17 10:48:16,704 INFO L750 eck$LassoCheckResult]: Loop: 26968#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 27101#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 27100#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 27099#L90 assume !(0 == mp_add_~i~0#1 % 256); 27098#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; 26951#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 27097#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 27096#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 27095#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 27094#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 26988#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 27093#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 27091#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 27088#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; 27089#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 27079#L84 assume !(0 == mp_add_~i~0#1 % 256); 27080#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 27066#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 26963#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 27062#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 27060#L90 assume !(0 == mp_add_~i~0#1 % 256); 27061#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 27049#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 27005#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 27047#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 27045#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 27043#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 27041#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 26982#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 27036#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 27034#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; 27031#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 27029#L84 assume !(0 == mp_add_~i~0#1 % 256); 27026#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 27025#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 27023#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 27020#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 27019#L90 assume !(0 == mp_add_~i~0#1 % 256); 27017#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 27014#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 27012#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; 27009#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 26999#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 26995#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 26990#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 26984#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 26974#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 26978#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; 26976#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 26971#L84 assume !(0 == mp_add_~i~0#1 % 256); 26967#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 26968#L85-1 [2022-10-17 10:48:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1596563941, now seen corresponding path program 1 times [2022-10-17 10:48:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:16,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003603201] [2022-10-17 10:48:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:16,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:16,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:16,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:16,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1682906864, now seen corresponding path program 1 times [2022-10-17 10:48:16,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:16,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145977851] [2022-10-17 10:48:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:16,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 10:48:16,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:16,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145977851] [2022-10-17 10:48:16,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145977851] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:16,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:16,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:48:16,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022462998] [2022-10-17 10:48:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:16,895 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:16,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:48:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:48:16,896 INFO L87 Difference]: Start difference. First operand 485 states and 634 transitions. cyclomatic complexity: 156 Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:17,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:17,102 INFO L93 Difference]: Finished difference Result 749 states and 940 transitions. [2022-10-17 10:48:17,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 749 states and 940 transitions. [2022-10-17 10:48:17,106 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 613 [2022-10-17 10:48:17,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 749 states to 715 states and 904 transitions. [2022-10-17 10:48:17,111 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 715 [2022-10-17 10:48:17,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 715 [2022-10-17 10:48:17,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 715 states and 904 transitions. [2022-10-17 10:48:17,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:17,113 INFO L218 hiAutomatonCegarLoop]: Abstraction has 715 states and 904 transitions. [2022-10-17 10:48:17,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states and 904 transitions. [2022-10-17 10:48:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 575. [2022-10-17 10:48:17,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 575 states have (on average 1.2817391304347827) internal successors, (737), 574 states have internal predecessors, (737), 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 10:48:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 737 transitions. [2022-10-17 10:48:17,127 INFO L240 hiAutomatonCegarLoop]: Abstraction has 575 states and 737 transitions. [2022-10-17 10:48:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:48:17,128 INFO L428 stractBuchiCegarLoop]: Abstraction has 575 states and 737 transitions. [2022-10-17 10:48:17,128 INFO L335 stractBuchiCegarLoop]: ======== Iteration 21 ============ [2022-10-17 10:48:17,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 575 states and 737 transitions. [2022-10-17 10:48:17,130 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 495 [2022-10-17 10:48:17,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:17,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:17,132 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:17,132 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:17,132 INFO L748 eck$LassoCheckResult]: Stem: 28123#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(15, 2); 28112#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 28105#L59 assume !(0 == mp_add_~a3~0#1 % 256); 28106#L59-1 mp_add_~nb~0#1 := 4; 28117#L69 assume !(0 == mp_add_~b3~0#1 % 256); 28110#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 28142#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; 28169#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28168#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; 28167#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 28166#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 28165#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 28164#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 28163#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; 28162#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 28161#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 28160#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 28159#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 28158#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 28157#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 28156#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 28155#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 28154#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 28152#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; 28153#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28405#L84 assume !(0 == mp_add_~i~0#1 % 256); 28404#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 28234#L85-1 [2022-10-17 10:48:17,132 INFO L750 eck$LassoCheckResult]: Loop: 28234#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 28403#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 28402#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 28401#L90 assume !(0 == mp_add_~i~0#1 % 256); 28400#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; 28395#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 28399#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 28398#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 28397#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 28391#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 28390#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 28389#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 28388#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 28387#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; 28202#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28385#L84 assume !(0 == mp_add_~i~0#1 % 256); 28384#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 28383#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 28229#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 28381#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 28379#L90 assume !(0 == mp_add_~i~0#1 % 256); 28350#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 28310#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 28215#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 28309#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 28308#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 28307#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 28305#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 28206#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 28301#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 28300#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; 28298#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28297#L84 assume !(0 == mp_add_~i~0#1 % 256); 28296#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 28295#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 28294#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 28292#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 28291#L90 assume !(0 == mp_add_~i~0#1 % 256); 28290#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 28289#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 28288#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; 28287#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 28286#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 28285#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 28284#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 28275#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 28255#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 28248#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; 28249#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28239#L84 assume !(0 == mp_add_~i~0#1 % 256); 28240#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 28228#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 28230#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 28263#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 28260#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 28261#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 28257#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 28256#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 28254#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 28251#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 28250#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; 28243#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28244#L84 assume !(0 == mp_add_~i~0#1 % 256); 28233#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 28234#L85-1 [2022-10-17 10:48:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:17,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1596563941, now seen corresponding path program 2 times [2022-10-17 10:48:17,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:17,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026327164] [2022-10-17 10:48:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:17,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:17,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:17,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:17,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:17,162 INFO L85 PathProgramCache]: Analyzing trace with hash 212147657, now seen corresponding path program 1 times [2022-10-17 10:48:17,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:17,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886807502] [2022-10-17 10:48:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:17,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:17,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:17,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886807502] [2022-10-17 10:48:17,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886807502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:17,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947634731] [2022-10-17 10:48:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:17,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:17,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:17,356 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:17,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-17 10:48:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:17,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:48:17,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-17 10:48:17,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-17 10:48:17,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947634731] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:17,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:17,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 15 [2022-10-17 10:48:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405458684] [2022-10-17 10:48:17,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:17,770 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:48:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:17,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-17 10:48:17,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:48:17,771 INFO L87 Difference]: Start difference. First operand 575 states and 737 transitions. cyclomatic complexity: 171 Second operand has 16 states, 15 states have (on average 9.333333333333334) internal successors, (140), 16 states have internal predecessors, (140), 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 10:48:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:19,061 INFO L93 Difference]: Finished difference Result 466 states and 502 transitions. [2022-10-17 10:48:19,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 466 states and 502 transitions. [2022-10-17 10:48:19,062 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 69 [2022-10-17 10:48:19,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 466 states to 413 states and 430 transitions. [2022-10-17 10:48:19,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 413 [2022-10-17 10:48:19,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 413 [2022-10-17 10:48:19,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 413 states and 430 transitions. [2022-10-17 10:48:19,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:19,066 INFO L218 hiAutomatonCegarLoop]: Abstraction has 413 states and 430 transitions. [2022-10-17 10:48:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states and 430 transitions. [2022-10-17 10:48:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 244. [2022-10-17 10:48:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 244 states have (on average 1.0573770491803278) internal successors, (258), 243 states have internal predecessors, (258), 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 10:48:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 258 transitions. [2022-10-17 10:48:19,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 244 states and 258 transitions. [2022-10-17 10:48:19,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-17 10:48:19,073 INFO L428 stractBuchiCegarLoop]: Abstraction has 244 states and 258 transitions. [2022-10-17 10:48:19,074 INFO L335 stractBuchiCegarLoop]: ======== Iteration 22 ============ [2022-10-17 10:48:19,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 258 transitions. [2022-10-17 10:48:19,075 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2022-10-17 10:48:19,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:19,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:19,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:19,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:19,076 INFO L748 eck$LassoCheckResult]: Stem: 29602#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(15, 2); 29594#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 29582#L59 assume !(0 == mp_add_~a3~0#1 % 256); 29583#L59-1 mp_add_~nb~0#1 := 4; 29597#L69 assume !(0 == mp_add_~b3~0#1 % 256); 29599#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 29693#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; 29692#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 29691#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; 29690#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 29689#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 29688#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 29687#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 29615#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; 29616#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 29725#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 29724#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 29723#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29722#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 29721#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 29720#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 29719#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 29718#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 29717#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; 29716#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 29676#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 29785#L90 assume !(0 == mp_add_~i~0#1 % 256); 29783#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; 29784#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 29798#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 29797#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29796#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 29795#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 29794#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 29793#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 29792#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 29791#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; 29790#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 29651#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 29789#L90 assume !(0 == mp_add_~i~0#1 % 256); 29788#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 29786#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 29787#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 29821#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29819#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 29817#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 29815#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 29814#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 29813#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 29812#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; 29811#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 29751#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 29810#L90 assume !(0 == mp_add_~i~0#1 % 256); 29809#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 29808#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 29807#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; 29806#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29805#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 29804#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 29803#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 29802#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 29800#L102-1 [2022-10-17 10:48:19,077 INFO L750 eck$LassoCheckResult]: Loop: 29800#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 29799#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; 29610#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 29611#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 29608#L90 assume !(0 == mp_add_~i~0#1 % 256); 29609#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 29584#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 29585#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 29586#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29820#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 29818#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 29816#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 29801#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 29800#L102-1 [2022-10-17 10:48:19,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:19,077 INFO L85 PathProgramCache]: Analyzing trace with hash -70625049, now seen corresponding path program 1 times [2022-10-17 10:48:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:19,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618684071] [2022-10-17 10:48:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:19,250 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-17 10:48:19,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:19,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618684071] [2022-10-17 10:48:19,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618684071] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:19,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000647047] [2022-10-17 10:48:19,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:19,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:19,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:19,256 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:19,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-17 10:48:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:19,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:48:19,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 10:48:19,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-17 10:48:19,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000647047] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:19,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:19,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 11 [2022-10-17 10:48:19,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660460543] [2022-10-17 10:48:19,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:19,647 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash 922833652, now seen corresponding path program 1 times [2022-10-17 10:48:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:19,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210162719] [2022-10-17 10:48:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:19,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:19,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:19,763 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:19,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:19,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:19,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:19,765 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:19,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:19,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:19,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:19,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration22_Loop [2022-10-17 10:48:19,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:19,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:19,783 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 10:48:19,804 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 10:48:20,069 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:20,070 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:20,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:20,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:20,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:20,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:20,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:20,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:48:20,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:20,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:20,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:20,205 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:20,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:48:20,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:20,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:21,888 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:21,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:21,893 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:21,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:21,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:21,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:21,893 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:21,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:21,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:21,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:21,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration22_Loop [2022-10-17 10:48:21,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:21,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:21,895 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 10:48:21,925 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 10:48:22,144 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:22,149 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:22,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,151 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,153 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 10:48:22,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:22,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:22,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:48:22,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,220 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:48:22,229 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 10:48:22,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:22,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:22,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,296 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-10-17 10:48:22,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,297 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:48:22,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,312 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:22,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:48:22,321 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:22,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,361 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:48:22,363 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 10:48:22,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,370 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:22,373 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:22,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,439 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-10-17 10:48:22,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,444 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,451 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 10:48:22,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,461 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:22,467 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:22,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:48:22,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,530 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,541 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 10:48:22,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:48:22,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,549 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:22,552 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:22,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,583 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-10-17 10:48:22,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,584 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:48:22,592 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 10:48:22,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,600 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:22,607 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:22,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,638 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:48:22,648 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 10:48:22,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:22,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,658 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:22,661 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:22,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,691 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-10-17 10:48:22,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,691 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:48:22,693 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 10:48:22,700 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:22,700 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:22,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,701 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:22,708 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:22,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,763 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:48:22,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:48:22,771 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:22,771 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:22,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,772 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:22,774 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:22,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,837 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-10-17 10:48:22,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,840 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,849 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 10:48:22,858 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:22,858 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:48:22,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,859 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:22,867 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:22,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:48:22,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:22,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:22,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:22,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:22,934 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:22,941 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 10:48:22,950 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:22,950 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:48:22,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:22,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:22,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:22,951 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:22,955 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:22,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:22,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:48:22,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,013 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-10-17 10:48:23,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,014 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,027 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 10:48:23,036 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:23,036 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:23,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:23,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:23,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:23,037 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:23,050 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:23,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:23,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:48:23,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:23,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,116 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,118 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 10:48:23,128 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:23,128 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:23,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:23,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:23,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:23,129 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:23,134 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:23,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:23,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:48:23,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,189 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-10-17 10:48:23,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:23,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,190 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,192 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 10:48:23,201 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:23,202 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:23,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:23,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:23,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:23,202 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:23,208 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:23,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:23,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:48:23,228 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:23,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,268 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,270 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 10:48:23,279 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:23,279 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:23,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:23,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:23,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:23,280 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:23,283 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:23,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:23,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:48:23,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,332 INFO L490 LassoAnalysis]: Using template '3-lex'. [2022-10-17 10:48:23,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:23,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,333 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,335 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 10:48:23,344 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:23,344 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:23,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:23,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:23,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:23,345 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:48:23,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:48:23,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:23,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:48:23,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:23,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,413 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,415 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 10:48:23,424 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:23,425 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:23,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:23,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:23,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:23,425 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:48:23,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:48:23,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:23,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:48:23,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:23,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:23,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:23,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:48:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:48:23,482 INFO L87 Difference]: Start difference. First operand 244 states and 258 transitions. cyclomatic complexity: 17 Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 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 10:48:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:23,707 INFO L93 Difference]: Finished difference Result 217 states and 227 transitions. [2022-10-17 10:48:23,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 227 transitions. [2022-10-17 10:48:23,708 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2022-10-17 10:48:23,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 208 states and 216 transitions. [2022-10-17 10:48:23,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2022-10-17 10:48:23,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2022-10-17 10:48:23,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 216 transitions. [2022-10-17 10:48:23,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:23,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 208 states and 216 transitions. [2022-10-17 10:48:23,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 216 transitions. [2022-10-17 10:48:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-10-17 10:48:23,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 208 states have (on average 1.0384615384615385) internal successors, (216), 207 states have internal predecessors, (216), 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 10:48:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 216 transitions. [2022-10-17 10:48:23,716 INFO L240 hiAutomatonCegarLoop]: Abstraction has 208 states and 216 transitions. [2022-10-17 10:48:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:48:23,717 INFO L428 stractBuchiCegarLoop]: Abstraction has 208 states and 216 transitions. [2022-10-17 10:48:23,717 INFO L335 stractBuchiCegarLoop]: ======== Iteration 23 ============ [2022-10-17 10:48:23,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 216 transitions. [2022-10-17 10:48:23,718 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2022-10-17 10:48:23,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:23,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:23,719 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:23,719 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:23,720 INFO L748 eck$LassoCheckResult]: Stem: 30447#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(15, 2); 30438#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 30431#L59 assume !(0 == mp_add_~a3~0#1 % 256); 30432#L59-1 mp_add_~nb~0#1 := 4; 30441#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 30435#L71 assume !(0 == mp_add_~b2~0#1 % 256); 30436#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 30508#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; 30509#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30504#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; 30505#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30500#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 30501#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 30496#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 30497#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; 30492#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 30493#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 30488#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 30489#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30484#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 30485#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 30480#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 30481#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 30476#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30477#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; 30472#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30473#L84 assume !(0 == mp_add_~i~0#1 % 256); 30468#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 30469#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 30464#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 30465#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 30583#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30582#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30581#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 30580#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 30579#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 30578#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30577#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; 30576#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30575#L84 assume !(0 == mp_add_~i~0#1 % 256); 30574#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30572#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 30573#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 30593#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 30592#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30591#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30590#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 30589#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 30452#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 30453#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30448#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; 30449#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30445#L84 assume !(0 == mp_add_~i~0#1 % 256); 30446#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30450#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 30451#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 30458#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 30429#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30430#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30442#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 30443#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 30614#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 30613#L102-1 [2022-10-17 10:48:23,720 INFO L750 eck$LassoCheckResult]: Loop: 30613#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30612#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; 30611#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30610#L84 assume !(0 == mp_add_~i~0#1 % 256); 30609#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30608#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 30439#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 30440#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 30617#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30616#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30615#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 30433#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 30434#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 30613#L102-1 [2022-10-17 10:48:23,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:23,720 INFO L85 PathProgramCache]: Analyzing trace with hash 526121358, now seen corresponding path program 1 times [2022-10-17 10:48:23,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:23,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154434601] [2022-10-17 10:48:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:23,949 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-17 10:48:23,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:23,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154434601] [2022-10-17 10:48:23,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154434601] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:23,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189237606] [2022-10-17 10:48:23,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:23,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:23,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:23,951 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:23,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-17 10:48:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:24,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:48:24,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-17 10:48:24,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:48:24,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189237606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:24,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:48:24,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2022-10-17 10:48:24,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583922360] [2022-10-17 10:48:24,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:24,376 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:24,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1466073576, now seen corresponding path program 1 times [2022-10-17 10:48:24,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:24,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280170029] [2022-10-17 10:48:24,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:24,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:24,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:24,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:24,490 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:24,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:24,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:24,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:24,490 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:24,490 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:24,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:24,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:24,491 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration23_Loop [2022-10-17 10:48:24,491 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:24,491 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:24,492 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 10:48:24,509 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 10:48:24,768 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:24,768 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:24,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:24,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:24,776 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:24,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:24,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:24,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-10-17 10:48:24,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:24,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:24,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:24,869 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:24,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-10-17 10:48:24,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:24,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:25,527 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:25,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:25,530 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:25,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:25,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:25,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:25,530 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:25,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:25,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:25,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:25,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration23_Loop [2022-10-17 10:48:25,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:25,531 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:25,532 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 10:48:25,565 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 10:48:25,812 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:25,812 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:25,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:25,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:25,813 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:25,821 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 10:48:25,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:25,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:25,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:25,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:25,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:25,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:25,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:25,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-10-17 10:48:25,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:25,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:25,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:25,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:25,878 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:25,880 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 10:48:25,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:25,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:25,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:25,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:25,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:25,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:25,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:25,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-10-17 10:48:25,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:25,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:25,948 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-10-17 10:48:25,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:25,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:25,949 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:25,952 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 10:48:25,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:25,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:25,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:25,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:25,961 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:25,965 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:25,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:25,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-10-17 10:48:25,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,008 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-10-17 10:48:26,009 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 10:48:26,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:26,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,016 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:26,018 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:26,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,044 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-10-17 10:48:26,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,046 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-10-17 10:48:26,048 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 10:48:26,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:26,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,056 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:26,060 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:26,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-10-17 10:48:26,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,088 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-10-17 10:48:26,094 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 10:48:26,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:26,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,102 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:26,106 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:26,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,150 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-10-17 10:48:26,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,151 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,154 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 10:48:26,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-10-17 10:48:26,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:26,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,162 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:26,168 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:26,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,198 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-10-17 10:48:26,199 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 10:48:26,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:26,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,207 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:26,209 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:26,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-10-17 10:48:26,270 INFO L490 LassoAnalysis]: Using template '2-phase'. [2022-10-17 10:48:26,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,271 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-10-17 10:48:26,273 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 10:48:26,280 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,280 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:26,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,280 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:26,283 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:26,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,317 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-10-17 10:48:26,319 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 10:48:26,326 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,326 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:26,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,326 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:26,329 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:26,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-10-17 10:48:26,352 INFO L490 LassoAnalysis]: Using template '3-phase'. [2022-10-17 10:48:26,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,358 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,360 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 10:48:26,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-10-17 10:48:26,368 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,368 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:48:26,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,369 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:26,373 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:26,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-10-17 10:48:26,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,424 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-10-17 10:48:26,426 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 10:48:26,433 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,433 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2022-10-17 10:48:26,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,433 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:26,436 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:26,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-10-17 10:48:26,463 INFO L490 LassoAnalysis]: Using template '4-phase'. [2022-10-17 10:48:26,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,464 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-10-17 10:48:26,465 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 10:48:26,473 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,473 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:26,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,474 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:26,482 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:26,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-10-17 10:48:26,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,520 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-10-17 10:48:26,522 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 10:48:26,529 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,529 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:26,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,530 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:26,533 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:26,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-10-17 10:48:26,561 INFO L490 LassoAnalysis]: Using template '2-lex'. [2022-10-17 10:48:26,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,562 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-10-17 10:48:26,564 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 10:48:26,571 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,572 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:26,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,572 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:26,577 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:26,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-10-17 10:48:26,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,605 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-10-17 10:48:26,607 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 10:48:26,615 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,615 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2022-10-17 10:48:26,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,615 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:26,618 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:26,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,651 INFO L490 LassoAnalysis]: Using template '3-lex'. [2022-10-17 10:48:26,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,652 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-10-17 10:48:26,653 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 10:48:26,660 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,660 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:26,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,661 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:48:26,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:48:26,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:26,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:26,740 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:26,745 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 10:48:26,754 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2022-10-17 10:48:26,754 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2022-10-17 10:48:26,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:26,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:26,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:26,754 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2022-10-17 10:48:26,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:48:26,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:26,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-10-17 10:48:26,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:26,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:26,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:48:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:48:26,813 INFO L87 Difference]: Start difference. First operand 208 states and 216 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 10:48:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:26,983 INFO L93 Difference]: Finished difference Result 376 states and 390 transitions. [2022-10-17 10:48:26,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 376 states and 390 transitions. [2022-10-17 10:48:26,986 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 116 [2022-10-17 10:48:26,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 376 states to 376 states and 390 transitions. [2022-10-17 10:48:26,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 376 [2022-10-17 10:48:26,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 376 [2022-10-17 10:48:26,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 376 states and 390 transitions. [2022-10-17 10:48:26,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:26,990 INFO L218 hiAutomatonCegarLoop]: Abstraction has 376 states and 390 transitions. [2022-10-17 10:48:26,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states and 390 transitions. [2022-10-17 10:48:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 233. [2022-10-17 10:48:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 233 states have (on average 1.0343347639484979) internal successors, (241), 232 states have internal predecessors, (241), 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 10:48:27,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 241 transitions. [2022-10-17 10:48:27,005 INFO L240 hiAutomatonCegarLoop]: Abstraction has 233 states and 241 transitions. [2022-10-17 10:48:27,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:48:27,008 INFO L428 stractBuchiCegarLoop]: Abstraction has 233 states and 241 transitions. [2022-10-17 10:48:27,009 INFO L335 stractBuchiCegarLoop]: ======== Iteration 24 ============ [2022-10-17 10:48:27,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 241 transitions. [2022-10-17 10:48:27,010 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 43 [2022-10-17 10:48:27,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:27,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:27,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:27,015 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:27,015 INFO L748 eck$LassoCheckResult]: Stem: 31224#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(15, 2); 31216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~ret4#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_~b~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~a~0#1 := 234770789;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; 31204#L59 assume !(0 == mp_add_~a3~0#1 % 256); 31205#L59-1 mp_add_~nb~0#1 := 4; 31219#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 31211#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 31213#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 31236#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 31334#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; 31333#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 31332#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; 31331#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 31330#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 31329#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 31328#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 31327#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; 31326#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 31325#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 31324#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 31323#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 31322#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 31321#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 31320#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 31319#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 31318#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 31317#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; 31316#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 31315#L84 assume !(0 == mp_add_~i~0#1 % 256); 31314#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 31313#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 31312#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 31311#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 31310#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 31309#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 31308#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 31307#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 31306#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 31305#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 31304#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; 31303#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 31302#L84 assume !(0 == mp_add_~i~0#1 % 256); 31301#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 31298#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 31217#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 31218#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 31238#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 31396#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 31394#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 31391#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 31390#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 31232#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 31225#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; 31226#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 31222#L84 assume !(0 == mp_add_~i~0#1 % 256); 31223#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 31299#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 31300#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 31399#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 31397#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 31237#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 31220#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 31214#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 31215#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 31229#L102-1 [2022-10-17 10:48:27,016 INFO L750 eck$LassoCheckResult]: Loop: 31229#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 31436#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; 31435#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 31434#L84 assume !(0 == mp_add_~i~0#1 % 256); 31234#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 31235#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 31433#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 31432#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 31209#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 31210#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 31395#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 31392#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 31393#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 31229#L102-1 [2022-10-17 10:48:27,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:27,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1569068628, now seen corresponding path program 1 times [2022-10-17 10:48:27,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:27,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130488556] [2022-10-17 10:48:27,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:27,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:27,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:27,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:27,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1466073576, now seen corresponding path program 2 times [2022-10-17 10:48:27,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:27,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702858346] [2022-10-17 10:48:27,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:27,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:27,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:27,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:27,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1058244261, now seen corresponding path program 2 times [2022-10-17 10:48:27,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:27,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751478671] [2022-10-17 10:48:27,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:27,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:27,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:27,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751478671] [2022-10-17 10:48:27,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751478671] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256921541] [2022-10-17 10:48:27,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:48:27,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:27,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:27,378 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:27,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2022-10-17 10:48:27,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-17 10:48:27,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:48:27,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:48:27,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-10-17 10:48:27,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-10-17 10:48:28,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256921541] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:28,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:28,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2022-10-17 10:48:28,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814132734] [2022-10-17 10:48:28,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:28,169 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:28,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:28,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:28,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:28,170 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:28,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:28,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:28,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:28,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration24_Loop [2022-10-17 10:48:28,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:28,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:28,171 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 10:48:28,178 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 10:48:28,395 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:28,396 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:28,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:28,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:28,397 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:28,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-10-17 10:48:28,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:28,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:28,415 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:48:28,415 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Honda state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:48:28,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-10-17 10:48:28,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:28,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:28,440 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:28,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-10-17 10:48:28,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:28,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:28,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:28,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:28,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:28,515 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:28,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-10-17 10:48:28,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:28,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:29,325 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:29,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:29,328 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:29,328 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:29,328 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:29,328 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:29,328 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:29,328 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:29,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:29,328 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration24_Loop [2022-10-17 10:48:29,328 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:29,329 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:29,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:29,336 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 10:48:29,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:29,590 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:29,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,592 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,593 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 10:48:29,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:29,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:29,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-10-17 10:48:29,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:29,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,660 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,662 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 10:48:29,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:29,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-10-17 10:48:29,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:29,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-10-17 10:48:29,696 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-10-17 10:48:29,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,697 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-10-17 10:48:29,698 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 10:48:29,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,705 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:29,706 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:29,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2022-10-17 10:48:29,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,728 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-10-17 10:48:29,730 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 10:48:29,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,737 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-10-17 10:48:29,740 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-10-17 10:48:29,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:29,800 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-10-17 10:48:29,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,801 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:48:29,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,817 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:29,820 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:29,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-10-17 10:48:29,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:29,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,865 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,867 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 10:48:29,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,877 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-10-17 10:48:29,881 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-10-17 10:48:29,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-10-17 10:48:29,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:29,928 INFO L490 LassoAnalysis]: Using template '4-nested'. [2022-10-17 10:48:29,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,932 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:29,934 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 10:48:29,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:29,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:29,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:29,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:29,945 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2022-10-17 10:48:29,947 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2022-10-17 10:48:29,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:29,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-10-17 10:48:29,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:29,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:29,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:29,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:29,990 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3d2566-de5c-49fc-9950-807b685a6d1e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)