./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg --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 0f228df5326e9a2af4c8b4cabb1b0357f6cae28b0c974d7c12db65aaebce6a00 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:51:29,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:51:29,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:51:29,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:51:29,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:51:29,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:51:29,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:51:29,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:51:29,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:51:29,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:51:29,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:51:29,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:51:29,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:51:29,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:51:29,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:51:29,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:51:29,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:51:29,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:51:29,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:51:29,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:51:29,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:51:29,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:51:29,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:51:29,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:51:29,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:51:29,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:51:29,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:51:29,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:51:29,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:51:29,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:51:29,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:51:29,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:51:29,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:51:29,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:51:29,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:51:29,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:51:29,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:51:29,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:51:29,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:51:29,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:51:29,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:51:29,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:51:29,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:51:29,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:51:29,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:51:29,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:51:29,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:51:29,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:51:29,854 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:51:29,854 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:51:29,854 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:51:29,855 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:51:29,856 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:51:29,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:51:29,856 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:51:29,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:51:29,857 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:51:29,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:51:29,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:51:29,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:51:29,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:51:29,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:51:29,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:51:29,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:51:29,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:51:29,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:51:29,859 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:51:29,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:51:29,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:51:29,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:51:29,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:51:29,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:51:29,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:51:29,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:51:29,864 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:51:29,864 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_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f228df5326e9a2af4c8b4cabb1b0357f6cae28b0c974d7c12db65aaebce6a00 [2021-10-28 09:51:30,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:51:30,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:51:30,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:51:30,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:51:30,247 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:51:30,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-28 09:51:30,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/data/8239d1a79/30e11730a5434e5f82d2f6ab1460a0a2/FLAG9b341600a [2021-10-28 09:51:30,969 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:51:30,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-28 09:51:30,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/data/8239d1a79/30e11730a5434e5f82d2f6ab1460a0a2/FLAG9b341600a [2021-10-28 09:51:31,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/data/8239d1a79/30e11730a5434e5f82d2f6ab1460a0a2 [2021-10-28 09:51:31,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:51:31,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:51:31,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:31,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:51:31,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:51:31,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad35967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31, skipping insertion in model container [2021-10-28 09:51:31,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:51:31,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:51:31,607 WARN L228 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_99f232a4-cc84-4983-b53f-f981638f570e/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-28 09:51:31,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:31,669 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:51:31,684 WARN L228 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_99f232a4-cc84-4983-b53f-f981638f570e/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-28 09:51:31,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:31,728 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:51:31,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31 WrapperNode [2021-10-28 09:51:31,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:31,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:51:31,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:51:31,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:51:31,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:51:31,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:51:31,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:51:31,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:51:31,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:51:31,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:51:31,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:51:31,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:51:31,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (1/1) ... [2021-10-28 09:51:31,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:31,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:31,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:31,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:51:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:51:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:51:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:51:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:51:32,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:51:32,378 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 09:51:32,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:32 BoogieIcfgContainer [2021-10-28 09:51:32,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:51:32,386 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:51:32,386 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:51:32,404 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:51:32,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:51:32,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:51:31" (1/3) ... [2021-10-28 09:51:32,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46837c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:51:32, skipping insertion in model container [2021-10-28 09:51:32,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:51:32,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:31" (2/3) ... [2021-10-28 09:51:32,408 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46837c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:51:32, skipping insertion in model container [2021-10-28 09:51:32,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:51:32,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:32" (3/3) ... [2021-10-28 09:51:32,410 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2021-10-28 09:51:32,472 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:51:32,472 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:51:32,473 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:51:32,473 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:51:32,473 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:51:32,473 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:51:32,474 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:51:32,474 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:51:32,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:32,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-28 09:51:32,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:32,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:32,527 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:51:32,528 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:32,528 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:51:32,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:32,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-28 09:51:32,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:32,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:32,541 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:51:32,542 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:32,557 INFO L791 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 12#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 7#L51true assume !(0 == mp_add_~a3~0 % 256); 15#L51-1true mp_add_~nb~0 := 4; 8#L61true assume !(0 == mp_add_~b3~0 % 256); 18#L61-1true mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 13#L72-2true [2021-10-28 09:51:32,558 INFO L793 eck$LassoCheckResult]: Loop: 13#L72-2true assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34#L75true assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 36#L75-1true assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27#L81true assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14#L87-1true assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 10#L91-1true assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 11#L92-1true assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 20#L93-1true assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 17#L94-1true mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 13#L72-2true [2021-10-28 09:51:32,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-28 09:51:32,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:32,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472721191] [2021-10-28 09:51:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:32,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:32,791 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:32,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:32,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-28 09:51:32,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:32,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375165665] [2021-10-28 09:51:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:32,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:33,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:33,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375165665] [2021-10-28 09:51:33,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375165665] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:33,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:33,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:33,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936183125] [2021-10-28 09:51:33,014 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:33,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:51:33,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:51:33,039 INFO L87 Difference]: Start difference. First operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-10-28 09:51:33,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:33,258 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-28 09:51:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:51:33,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-28 09:51:33,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-28 09:51:33,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-28 09:51:33,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-28 09:51:33,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-28 09:51:33,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-28 09:51:33,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:33,278 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-28 09:51:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-28 09:51:33,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-28 09:51:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 53 states have internal predecessors, (84), 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) [2021-10-28 09:51:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-28 09:51:33,319 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-28 09:51:33,319 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-28 09:51:33,321 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:51:33,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-28 09:51:33,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 09:51:33,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:33,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:33,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:33,333 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:33,333 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 124#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 114#L51 assume !(0 == mp_add_~a3~0 % 256); 115#L51-1 mp_add_~nb~0 := 4; 117#L61 assume !(0 == mp_add_~b3~0 % 256); 118#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 125#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 126#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 146#L75-1 [2021-10-28 09:51:33,334 INFO L793 eck$LassoCheckResult]: Loop: 146#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 140#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 128#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 121#L91-1 assume !(1 == mp_add_~i~0 % 256); 122#L92-1 assume !(2 == mp_add_~i~0 % 256); 123#L93-1 assume !(3 == mp_add_~i~0 % 256); 131#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 132#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 158#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 159#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 151#L76-2 assume !(1 == mp_add_~i~0 % 256); 160#L77-1 assume !(2 == mp_add_~i~0 % 256); 145#L78-1 assume !(3 == mp_add_~i~0 % 256); 146#L75-1 [2021-10-28 09:51:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-28 09:51:33,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:33,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722799748] [2021-10-28 09:51:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:33,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:33,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:33,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722799748] [2021-10-28 09:51:33,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722799748] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:33,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:33,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:33,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276589238] [2021-10-28 09:51:33,594 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:33,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:33,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-28 09:51:33,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:33,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877873794] [2021-10-28 09:51:33,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:33,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:33,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:33,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877873794] [2021-10-28 09:51:33,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877873794] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:33,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:33,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:33,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960052537] [2021-10-28 09:51:33,699 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:33,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:51:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:51:33,700 INFO L87 Difference]: Start difference. First operand 54 states and 84 transitions. cyclomatic complexity: 32 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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) [2021-10-28 09:51:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:34,102 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-10-28 09:51:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:51:34,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-10-28 09:51:34,107 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-10-28 09:51:34,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-10-28 09:51:34,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-28 09:51:34,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-28 09:51:34,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-10-28 09:51:34,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:34,114 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-10-28 09:51:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-10-28 09:51:34,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-10-28 09:51:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 77 states have internal predecessors, (113), 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) [2021-10-28 09:51:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-28 09:51:34,127 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-28 09:51:34,127 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-28 09:51:34,127 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:51:34,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-28 09:51:34,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 09:51:34,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:34,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:34,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:34,130 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:34,131 INFO L791 eck$LassoCheckResult]: Stem: 351#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 341#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 332#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 334#L53 assume !(0 == mp_add_~a2~0 % 256); 368#L51-1 mp_add_~nb~0 := 4; 335#L61 assume !(0 == mp_add_~b3~0 % 256); 336#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 378#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 379#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 400#L75-1 [2021-10-28 09:51:34,131 INFO L793 eck$LassoCheckResult]: Loop: 400#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 366#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 342#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 329#L91-1 assume !(1 == mp_add_~i~0 % 256); 330#L92-1 assume !(2 == mp_add_~i~0 % 256); 331#L93-1 assume !(3 == mp_add_~i~0 % 256); 346#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 347#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 376#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 369#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 352#L76-2 assume !(1 == mp_add_~i~0 % 256); 353#L77-1 assume !(2 == mp_add_~i~0 % 256); 354#L78-1 assume !(3 == mp_add_~i~0 % 256); 400#L75-1 [2021-10-28 09:51:34,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-10-28 09:51:34,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:34,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709785572] [2021-10-28 09:51:34,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:34,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:34,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:34,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:34,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709785572] [2021-10-28 09:51:34,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709785572] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:34,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:34,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:34,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715871923] [2021-10-28 09:51:34,230 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:34,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:34,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-10-28 09:51:34,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:34,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117554837] [2021-10-28 09:51:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:34,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:34,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:34,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117554837] [2021-10-28 09:51:34,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117554837] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:34,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:34,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:34,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586128887] [2021-10-28 09:51:34,301 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:34,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:34,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:51:34,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:51:34,327 INFO L87 Difference]: Start difference. First operand 78 states and 113 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) [2021-10-28 09:51:34,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:34,333 INFO L93 Difference]: Finished difference Result 66 states and 93 transitions. [2021-10-28 09:51:34,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:51:34,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 93 transitions. [2021-10-28 09:51:34,335 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 09:51:34,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 93 transitions. [2021-10-28 09:51:34,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-28 09:51:34,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-10-28 09:51:34,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 93 transitions. [2021-10-28 09:51:34,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:34,343 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-28 09:51:34,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 93 transitions. [2021-10-28 09:51:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-28 09:51:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 65 states have internal predecessors, (93), 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) [2021-10-28 09:51:34,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-28 09:51:34,353 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-28 09:51:34,353 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-28 09:51:34,353 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:51:34,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 93 transitions. [2021-10-28 09:51:34,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 09:51:34,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:34,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:34,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:34,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:34,362 INFO L791 eck$LassoCheckResult]: Stem: 500#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 490#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 481#L51 assume !(0 == mp_add_~a3~0 % 256); 482#L51-1 mp_add_~nb~0 := 4; 483#L61 assume !(0 == mp_add_~b3~0 % 256); 484#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 497#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 545#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 544#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 543#L76-2 assume !(1 == mp_add_~i~0 % 256); 541#L77-1 assume !(2 == mp_add_~i~0 % 256); 538#L78-1 assume !(3 == mp_add_~i~0 % 256); 533#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 531#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 493#L87-1 [2021-10-28 09:51:34,363 INFO L793 eck$LassoCheckResult]: Loop: 493#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 487#L91-1 assume !(1 == mp_add_~i~0 % 256); 488#L92-1 assume !(2 == mp_add_~i~0 % 256); 489#L93-1 assume !(3 == mp_add_~i~0 % 256); 498#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 522#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 523#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 514#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 517#L76-2 assume !(1 == mp_add_~i~0 % 256); 540#L77-1 assume !(2 == mp_add_~i~0 % 256); 537#L78-1 assume !(3 == mp_add_~i~0 % 256); 536#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 532#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 493#L87-1 [2021-10-28 09:51:34,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 1 times [2021-10-28 09:51:34,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:34,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159957366] [2021-10-28 09:51:34,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:34,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:34,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:34,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159957366] [2021-10-28 09:51:34,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159957366] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:34,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:34,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:34,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757234339] [2021-10-28 09:51:34,559 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:34,560 INFO L85 PathProgramCache]: Analyzing trace with hash 686981138, now seen corresponding path program 3 times [2021-10-28 09:51:34,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:34,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633451964] [2021-10-28 09:51:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:34,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:34,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:34,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633451964] [2021-10-28 09:51:34,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633451964] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:34,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:34,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:34,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116533981] [2021-10-28 09:51:34,646 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:34,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:51:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:51:34,652 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:34,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:34,843 INFO L93 Difference]: Finished difference Result 91 states and 134 transitions. [2021-10-28 09:51:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:51:34,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2021-10-28 09:51:34,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-10-28 09:51:34,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 134 transitions. [2021-10-28 09:51:34,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2021-10-28 09:51:34,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2021-10-28 09:51:34,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 134 transitions. [2021-10-28 09:51:34,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:34,852 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 134 transitions. [2021-10-28 09:51:34,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 134 transitions. [2021-10-28 09:51:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-10-28 09:51:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 82 states have internal predecessors, (120), 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) [2021-10-28 09:51:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-28 09:51:34,871 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-28 09:51:34,871 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-28 09:51:34,871 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:51:34,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 120 transitions. [2021-10-28 09:51:34,873 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 09:51:34,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:34,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:34,875 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:34,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:34,876 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 656#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 649#L51 assume !(0 == mp_add_~a3~0 % 256); 650#L51-1 mp_add_~nb~0 := 4; 651#L61 assume !(0 == mp_add_~b3~0 % 256); 652#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 663#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 711#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 710#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 709#L76-2 assume !(1 == mp_add_~i~0 % 256); 708#L77-1 assume !(2 == mp_add_~i~0 % 256); 706#L78-1 assume !(3 == mp_add_~i~0 % 256); 703#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 701#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 697#L87-1 [2021-10-28 09:51:34,882 INFO L793 eck$LassoCheckResult]: Loop: 697#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 696#L91-1 assume !(1 == mp_add_~i~0 % 256); 694#L92-1 assume !(2 == mp_add_~i~0 % 256); 691#L93-1 assume !(3 == mp_add_~i~0 % 256); 692#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 687#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 688#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 674#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 659#L87-1 assume !(0 == mp_add_~i~0 % 256); 655#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 647#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 648#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 689#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 690#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 695#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 715#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 716#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 676#L82-2 assume !(1 == mp_add_~i~0 % 256); 682#L83-1 assume !(2 == mp_add_~i~0 % 256); 684#L84-1 assume !(3 == mp_add_~i~0 % 256); 719#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 697#L87-1 [2021-10-28 09:51:34,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:34,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 2 times [2021-10-28 09:51:34,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:34,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284321637] [2021-10-28 09:51:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:34,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:35,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:35,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284321637] [2021-10-28 09:51:35,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284321637] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:35,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:35,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:35,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345977672] [2021-10-28 09:51:35,035 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:35,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:35,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 1 times [2021-10-28 09:51:35,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:35,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657036194] [2021-10-28 09:51:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:35,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:51:35,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:35,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657036194] [2021-10-28 09:51:35,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657036194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:35,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:35,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:35,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440268432] [2021-10-28 09:51:35,069 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:35,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:35,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:51:35,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:51:35,071 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 09:51:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:35,267 INFO L93 Difference]: Finished difference Result 164 states and 234 transitions. [2021-10-28 09:51:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:51:35,267 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 234 transitions. [2021-10-28 09:51:35,269 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2021-10-28 09:51:35,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 234 transitions. [2021-10-28 09:51:35,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-10-28 09:51:35,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2021-10-28 09:51:35,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 234 transitions. [2021-10-28 09:51:35,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:35,273 INFO L681 BuchiCegarLoop]: Abstraction has 164 states and 234 transitions. [2021-10-28 09:51:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 234 transitions. [2021-10-28 09:51:35,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 91. [2021-10-28 09:51:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 90 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) [2021-10-28 09:51:35,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-28 09:51:35,280 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 09:51:35,281 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 09:51:35,281 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:51:35,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-28 09:51:35,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 09:51:35,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:35,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:35,283 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:35,283 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:35,284 INFO L791 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 917#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 908#L51 assume !(0 == mp_add_~a3~0 % 256); 909#L51-1 mp_add_~nb~0 := 4; 910#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 912#L63 assume !(0 == mp_add_~b2~0 % 256); 913#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 970#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 969#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 968#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 967#L76-2 assume !(1 == mp_add_~i~0 % 256); 966#L77-1 assume !(2 == mp_add_~i~0 % 256); 965#L78-1 assume !(3 == mp_add_~i~0 % 256); 963#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 960#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 961#L87-1 [2021-10-28 09:51:35,284 INFO L793 eck$LassoCheckResult]: Loop: 961#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 904#L91-1 assume !(1 == mp_add_~i~0 % 256); 905#L92-1 assume !(2 == mp_add_~i~0 % 256); 955#L93-1 assume !(3 == mp_add_~i~0 % 256); 954#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 950#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 951#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 943#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 934#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 918#L87-1 assume !(0 == mp_add_~i~0 % 256); 919#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 906#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 907#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 924#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 952#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 953#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 982#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 983#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 938#L82-2 assume !(1 == mp_add_~i~0 % 256); 941#L83-1 assume !(2 == mp_add_~i~0 % 256); 991#L84-1 assume !(3 == mp_add_~i~0 % 256); 990#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 961#L87-1 [2021-10-28 09:51:35,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:35,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2095675795, now seen corresponding path program 1 times [2021-10-28 09:51:35,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:35,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27206002] [2021-10-28 09:51:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:35,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:35,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:35,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27206002] [2021-10-28 09:51:35,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27206002] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:35,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:35,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:51:35,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710667440] [2021-10-28 09:51:35,387 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:35,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:35,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 2 times [2021-10-28 09:51:35,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:35,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245626591] [2021-10-28 09:51:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:35,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:51:35,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:35,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245626591] [2021-10-28 09:51:35,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245626591] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:35,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:35,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:35,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288468974] [2021-10-28 09:51:35,410 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:35,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:51:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:51:35,411 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:35,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:35,859 INFO L93 Difference]: Finished difference Result 245 states and 348 transitions. [2021-10-28 09:51:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:51:35,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 348 transitions. [2021-10-28 09:51:35,866 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2021-10-28 09:51:35,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 348 transitions. [2021-10-28 09:51:35,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2021-10-28 09:51:35,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2021-10-28 09:51:35,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 348 transitions. [2021-10-28 09:51:35,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:35,871 INFO L681 BuchiCegarLoop]: Abstraction has 245 states and 348 transitions. [2021-10-28 09:51:35,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 348 transitions. [2021-10-28 09:51:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 91. [2021-10-28 09:51:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 90 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) [2021-10-28 09:51:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-28 09:51:35,882 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 09:51:35,882 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 09:51:35,882 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:51:35,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-28 09:51:35,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 09:51:35,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:35,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:35,885 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:35,885 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:35,886 INFO L791 eck$LassoCheckResult]: Stem: 1273#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1264#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1256#L51 assume !(0 == mp_add_~a3~0 % 256); 1257#L51-1 mp_add_~nb~0 := 4; 1258#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1260#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1261#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1295#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1319#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1318#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1317#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1316#L76-2 assume !(1 == mp_add_~i~0 % 256); 1315#L77-1 assume !(2 == mp_add_~i~0 % 256); 1314#L78-1 assume !(3 == mp_add_~i~0 % 256); 1312#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1310#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1265#L87-1 [2021-10-28 09:51:35,887 INFO L793 eck$LassoCheckResult]: Loop: 1265#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1253#L91-1 assume !(1 == mp_add_~i~0 % 256); 1254#L92-1 assume !(2 == mp_add_~i~0 % 256); 1255#L93-1 assume !(3 == mp_add_~i~0 % 256); 1270#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1299#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1300#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1334#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1332#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1308#L87-1 assume !(0 == mp_add_~i~0 % 256); 1306#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1304#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1302#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1301#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1297#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1298#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1281#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1330#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1283#L82-2 assume !(1 == mp_add_~i~0 % 256); 1343#L83-1 assume !(2 == mp_add_~i~0 % 256); 1286#L84-1 assume !(3 == mp_add_~i~0 % 256); 1280#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1265#L87-1 [2021-10-28 09:51:35,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:35,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1829134745, now seen corresponding path program 1 times [2021-10-28 09:51:35,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:35,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828144282] [2021-10-28 09:51:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:35,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:36,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:36,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828144282] [2021-10-28 09:51:36,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828144282] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:36,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:36,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:36,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294549308] [2021-10-28 09:51:36,012 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 3 times [2021-10-28 09:51:36,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:36,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859782983] [2021-10-28 09:51:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:36,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:36,033 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:51:36,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:36,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859782983] [2021-10-28 09:51:36,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859782983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:36,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:36,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:36,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746121158] [2021-10-28 09:51:36,035 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:36,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:36,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:51:36,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:51:36,035 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 39 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:36,137 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2021-10-28 09:51:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:51:36,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 318 transitions. [2021-10-28 09:51:36,143 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-10-28 09:51:36,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 318 transitions. [2021-10-28 09:51:36,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-28 09:51:36,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-28 09:51:36,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 318 transitions. [2021-10-28 09:51:36,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:36,149 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 318 transitions. [2021-10-28 09:51:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 318 transitions. [2021-10-28 09:51:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-10-28 09:51:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.5033557046979866) internal successors, (224), 148 states have internal predecessors, (224), 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) [2021-10-28 09:51:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2021-10-28 09:51:36,164 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-28 09:51:36,164 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-28 09:51:36,164 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:51:36,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 224 transitions. [2021-10-28 09:51:36,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2021-10-28 09:51:36,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:36,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:36,167 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:36,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:36,168 INFO L791 eck$LassoCheckResult]: Stem: 1595#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1587#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1579#L51 assume !(0 == mp_add_~a3~0 % 256); 1580#L51-1 mp_add_~nb~0 := 4; 1581#L61 assume !(0 == mp_add_~b3~0 % 256); 1582#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1585#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1586#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1625#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1626#L76-2 assume !(1 == mp_add_~i~0 % 256); 1653#L77-1 assume !(2 == mp_add_~i~0 % 256); 1652#L78-1 assume !(3 == mp_add_~i~0 % 256); 1651#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1645#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1648#L82-2 assume !(1 == mp_add_~i~0 % 256); 1646#L83-1 assume !(2 == mp_add_~i~0 % 256); 1642#L84-1 assume !(3 == mp_add_~i~0 % 256); 1643#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1692#L87-1 [2021-10-28 09:51:36,168 INFO L793 eck$LassoCheckResult]: Loop: 1692#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1689#L91-1 assume !(1 == mp_add_~i~0 % 256); 1688#L92-1 assume !(2 == mp_add_~i~0 % 256); 1686#L93-1 assume !(3 == mp_add_~i~0 % 256); 1682#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1633#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1634#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1665#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1660#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1661#L87-1 assume !(0 == mp_add_~i~0 % 256); 1691#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1722#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1721#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1720#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1621#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1610#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1611#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1717#L76-2 assume !(1 == mp_add_~i~0 % 256); 1701#L77-1 assume !(2 == mp_add_~i~0 % 256); 1700#L78-1 assume !(3 == mp_add_~i~0 % 256); 1699#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1694#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1692#L87-1 [2021-10-28 09:51:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-10-28 09:51:36,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:36,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771877211] [2021-10-28 09:51:36,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:36,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:36,229 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:36,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:36,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash 857385497, now seen corresponding path program 1 times [2021-10-28 09:51:36,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:36,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823840200] [2021-10-28 09:51:36,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:36,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:51:36,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:36,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823840200] [2021-10-28 09:51:36,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823840200] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:36,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:36,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:36,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201610661] [2021-10-28 09:51:36,300 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:36,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:36,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:51:36,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:51:36,301 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. cyclomatic complexity: 77 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:36,407 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2021-10-28 09:51:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:51:36,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 283 transitions. [2021-10-28 09:51:36,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2021-10-28 09:51:36,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 283 transitions. [2021-10-28 09:51:36,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-10-28 09:51:36,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-10-28 09:51:36,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 283 transitions. [2021-10-28 09:51:36,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:36,413 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 283 transitions. [2021-10-28 09:51:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 283 transitions. [2021-10-28 09:51:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-10-28 09:51:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 191 states have (on average 1.4659685863874345) internal successors, (280), 190 states have internal predecessors, (280), 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) [2021-10-28 09:51:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 280 transitions. [2021-10-28 09:51:36,435 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-28 09:51:36,435 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-28 09:51:36,435 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 09:51:36,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 280 transitions. [2021-10-28 09:51:36,437 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2021-10-28 09:51:36,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:36,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:36,440 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:36,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:36,443 INFO L791 eck$LassoCheckResult]: Stem: 1946#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1935#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1925#L51 assume !(0 == mp_add_~a3~0 % 256); 1926#L51-1 mp_add_~nb~0 := 4; 1927#L61 assume !(0 == mp_add_~b3~0 % 256); 1928#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1942#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2010#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2009#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2008#L76-2 assume !(1 == mp_add_~i~0 % 256); 2006#L77-1 assume !(2 == mp_add_~i~0 % 256); 2004#L78-1 assume !(3 == mp_add_~i~0 % 256); 2002#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1996#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1999#L82-2 assume !(1 == mp_add_~i~0 % 256); 1997#L83-1 assume !(2 == mp_add_~i~0 % 256); 1993#L84-1 assume !(3 == mp_add_~i~0 % 256); 1994#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2052#L87-1 [2021-10-28 09:51:36,443 INFO L793 eck$LassoCheckResult]: Loop: 2052#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2050#L91-1 assume !(1 == mp_add_~i~0 % 256); 2049#L92-1 assume !(2 == mp_add_~i~0 % 256); 2048#L93-1 assume !(3 == mp_add_~i~0 % 256); 2047#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1975#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1976#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2024#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2019#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1938#L87-1 assume !(0 == mp_add_~i~0 % 256); 1931#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1932#L92-1 assume !(2 == mp_add_~i~0 % 256); 1934#L93-1 assume !(3 == mp_add_~i~0 % 256); 1943#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2071#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2068#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2069#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2072#L76-2 assume !(1 == mp_add_~i~0 % 256); 2070#L77-1 assume !(2 == mp_add_~i~0 % 256); 2064#L78-1 assume !(3 == mp_add_~i~0 % 256); 2057#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2054#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2052#L87-1 [2021-10-28 09:51:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:36,446 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-10-28 09:51:36,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:36,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662485841] [2021-10-28 09:51:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:36,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:36,476 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:36,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:36,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:36,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1165423065, now seen corresponding path program 1 times [2021-10-28 09:51:36,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:36,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251270832] [2021-10-28 09:51:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:36,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:36,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:36,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251270832] [2021-10-28 09:51:36,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251270832] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:36,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:36,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:51:36,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277663417] [2021-10-28 09:51:36,630 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:36,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:36,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:51:36,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:51:36,638 INFO L87 Difference]: Start difference. First operand 191 states and 280 transitions. cyclomatic complexity: 91 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:36,899 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-10-28 09:51:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:51:36,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 532 transitions. [2021-10-28 09:51:36,903 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 311 [2021-10-28 09:51:36,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 532 transitions. [2021-10-28 09:51:36,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-10-28 09:51:36,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-10-28 09:51:36,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 532 transitions. [2021-10-28 09:51:36,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:36,909 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 532 transitions. [2021-10-28 09:51:36,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 532 transitions. [2021-10-28 09:51:36,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 288. [2021-10-28 09:51:36,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.4548611111111112) internal successors, (419), 287 states have internal predecessors, (419), 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) [2021-10-28 09:51:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2021-10-28 09:51:36,918 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-28 09:51:36,918 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-28 09:51:36,918 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 09:51:36,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 419 transitions. [2021-10-28 09:51:36,920 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2021-10-28 09:51:36,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:36,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:36,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:36,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:36,924 INFO L791 eck$LassoCheckResult]: Stem: 2517#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 2504#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 2494#L51 assume !(0 == mp_add_~a3~0 % 256); 2495#L51-1 mp_add_~nb~0 := 4; 2496#L61 assume !(0 == mp_add_~b3~0 % 256); 2497#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 2513#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2587#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2586#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2585#L76-2 assume !(1 == mp_add_~i~0 % 256); 2583#L77-1 assume !(2 == mp_add_~i~0 % 256); 2581#L78-1 assume !(3 == mp_add_~i~0 % 256); 2579#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 2573#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 2576#L82-2 assume !(1 == mp_add_~i~0 % 256); 2574#L83-1 assume !(2 == mp_add_~i~0 % 256); 2570#L84-1 assume !(3 == mp_add_~i~0 % 256); 2571#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2601#L87-1 [2021-10-28 09:51:36,925 INFO L793 eck$LassoCheckResult]: Loop: 2601#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2602#L91-1 assume !(1 == mp_add_~i~0 % 256); 2597#L92-1 assume !(2 == mp_add_~i~0 % 256); 2598#L93-1 assume !(3 == mp_add_~i~0 % 256); 2593#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2594#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2607#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2608#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2531#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2723#L87-1 assume !(0 == mp_add_~i~0 % 256); 2722#L91-1 assume !(1 == mp_add_~i~0 % 256); 2502#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 2503#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 2515#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2546#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2547#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2604#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2605#L76-2 assume !(1 == mp_add_~i~0 % 256); 2655#L77-1 assume !(2 == mp_add_~i~0 % 256); 2649#L78-1 assume !(3 == mp_add_~i~0 % 256); 2650#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2617#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2601#L87-1 [2021-10-28 09:51:36,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:36,926 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-10-28 09:51:36,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:36,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71968567] [2021-10-28 09:51:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:36,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:36,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:37,004 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:37,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1115550935, now seen corresponding path program 1 times [2021-10-28 09:51:37,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:37,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120938039] [2021-10-28 09:51:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:37,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:51:37,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:37,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120938039] [2021-10-28 09:51:37,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120938039] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:37,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:37,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:37,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479668287] [2021-10-28 09:51:37,036 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:37,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:37,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:51:37,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:51:37,038 INFO L87 Difference]: Start difference. First operand 288 states and 419 transitions. cyclomatic complexity: 134 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:37,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:37,133 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2021-10-28 09:51:37,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:51:37,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 495 transitions. [2021-10-28 09:51:37,137 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-10-28 09:51:37,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 495 transitions. [2021-10-28 09:51:37,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2021-10-28 09:51:37,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2021-10-28 09:51:37,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 495 transitions. [2021-10-28 09:51:37,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:37,142 INFO L681 BuchiCegarLoop]: Abstraction has 340 states and 495 transitions. [2021-10-28 09:51:37,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 495 transitions. [2021-10-28 09:51:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2021-10-28 09:51:37,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 334 states have (on average 1.464071856287425) internal successors, (489), 333 states have internal predecessors, (489), 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) [2021-10-28 09:51:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 489 transitions. [2021-10-28 09:51:37,152 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-28 09:51:37,152 INFO L587 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-28 09:51:37,152 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 09:51:37,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 489 transitions. [2021-10-28 09:51:37,155 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2021-10-28 09:51:37,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:37,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:37,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:37,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:37,157 INFO L791 eck$LassoCheckResult]: Stem: 3150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 3139#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3131#L51 assume !(0 == mp_add_~a3~0 % 256); 3132#L51-1 mp_add_~nb~0 := 4; 3133#L61 assume !(0 == mp_add_~b3~0 % 256); 3134#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3145#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3219#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3218#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3217#L76-2 assume !(1 == mp_add_~i~0 % 256); 3215#L77-1 assume !(2 == mp_add_~i~0 % 256); 3213#L78-1 assume !(3 == mp_add_~i~0 % 256); 3211#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3205#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3208#L82-2 assume !(1 == mp_add_~i~0 % 256); 3206#L83-1 assume !(2 == mp_add_~i~0 % 256); 3202#L84-1 assume !(3 == mp_add_~i~0 % 256); 3203#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3236#L87-1 [2021-10-28 09:51:37,157 INFO L793 eck$LassoCheckResult]: Loop: 3236#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3237#L91-1 assume !(1 == mp_add_~i~0 % 256); 3228#L92-1 assume !(2 == mp_add_~i~0 % 256); 3229#L93-1 assume !(3 == mp_add_~i~0 % 256); 3224#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3225#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3260#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3256#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3257#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3329#L87-1 assume !(0 == mp_add_~i~0 % 256); 3289#L91-1 assume !(1 == mp_add_~i~0 % 256); 3288#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 3146#L93-1 assume !(3 == mp_add_~i~0 % 256); 3147#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3191#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3283#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3284#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3319#L76-2 assume !(1 == mp_add_~i~0 % 256); 3448#L77-1 assume !(2 == mp_add_~i~0 % 256); 3447#L78-1 assume !(3 == mp_add_~i~0 % 256); 3446#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3442#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3236#L87-1 [2021-10-28 09:51:37,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:37,158 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 4 times [2021-10-28 09:51:37,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:37,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771019618] [2021-10-28 09:51:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:37,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:37,217 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:37,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 722523925, now seen corresponding path program 1 times [2021-10-28 09:51:37,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:37,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787223389] [2021-10-28 09:51:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:37,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:37,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:37,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787223389] [2021-10-28 09:51:37,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787223389] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:37,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104017099] [2021-10-28 09:51:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:37,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:37,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:37,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:37,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:51:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:37,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:51:37,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:37,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104017099] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:37,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:51:37,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-10-28 09:51:37,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510220193] [2021-10-28 09:51:37,872 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:37,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:51:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:51:37,874 INFO L87 Difference]: Start difference. First operand 334 states and 489 transitions. cyclomatic complexity: 158 Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:38,131 INFO L93 Difference]: Finished difference Result 359 states and 490 transitions. [2021-10-28 09:51:38,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:51:38,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 490 transitions. [2021-10-28 09:51:38,138 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 306 [2021-10-28 09:51:38,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 359 states and 490 transitions. [2021-10-28 09:51:38,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2021-10-28 09:51:38,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2021-10-28 09:51:38,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 490 transitions. [2021-10-28 09:51:38,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:38,144 INFO L681 BuchiCegarLoop]: Abstraction has 359 states and 490 transitions. [2021-10-28 09:51:38,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 490 transitions. [2021-10-28 09:51:38,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 302. [2021-10-28 09:51:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 302 states have (on average 1.4172185430463575) internal successors, (428), 301 states have internal predecessors, (428), 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) [2021-10-28 09:51:38,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 428 transitions. [2021-10-28 09:51:38,154 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-28 09:51:38,154 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-28 09:51:38,154 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 09:51:38,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 428 transitions. [2021-10-28 09:51:38,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2021-10-28 09:51:38,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:38,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:38,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:38,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:38,162 INFO L791 eck$LassoCheckResult]: Stem: 3916#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 3906#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3898#L51 assume !(0 == mp_add_~a3~0 % 256); 3899#L51-1 mp_add_~nb~0 := 4; 3900#L61 assume !(0 == mp_add_~b3~0 % 256); 3901#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3913#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3984#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3983#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3982#L76-2 assume !(1 == mp_add_~i~0 % 256); 3980#L77-1 assume !(2 == mp_add_~i~0 % 256); 3978#L78-1 assume !(3 == mp_add_~i~0 % 256); 3976#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3970#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3973#L82-2 assume !(1 == mp_add_~i~0 % 256); 3971#L83-1 assume !(2 == mp_add_~i~0 % 256); 3967#L84-1 assume !(3 == mp_add_~i~0 % 256); 3968#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4145#L87-1 [2021-10-28 09:51:38,162 INFO L793 eck$LassoCheckResult]: Loop: 4145#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4069#L91-1 assume !(1 == mp_add_~i~0 % 256); 4131#L92-1 assume !(2 == mp_add_~i~0 % 256); 4113#L93-1 assume !(3 == mp_add_~i~0 % 256); 4110#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4109#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3993#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3994#L76 assume !(0 == mp_add_~i~0 % 256); 4108#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 4106#L77-1 assume !(2 == mp_add_~i~0 % 256); 4103#L78-1 assume !(3 == mp_add_~i~0 % 256); 4097#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4093#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4094#L87-1 assume !(0 == mp_add_~i~0 % 256); 4014#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4006#L92-1 assume !(2 == mp_add_~i~0 % 256); 3997#L93-1 assume !(3 == mp_add_~i~0 % 256); 3996#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4062#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4056#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4049#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4050#L76-2 assume !(1 == mp_add_~i~0 % 256); 4154#L77-1 assume !(2 == mp_add_~i~0 % 256); 4152#L78-1 assume !(3 == mp_add_~i~0 % 256); 4150#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4148#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4145#L87-1 [2021-10-28 09:51:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 5 times [2021-10-28 09:51:38,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:38,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106304813] [2021-10-28 09:51:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:38,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:38,192 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:38,235 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:38,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1570645289, now seen corresponding path program 1 times [2021-10-28 09:51:38,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:38,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704248857] [2021-10-28 09:51:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:38,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:38,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:38,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704248857] [2021-10-28 09:51:38,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704248857] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:38,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:38,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:38,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899495897] [2021-10-28 09:51:38,323 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:38,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:38,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:51:38,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:51:38,327 INFO L87 Difference]: Start difference. First operand 302 states and 428 transitions. cyclomatic complexity: 129 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:38,525 INFO L93 Difference]: Finished difference Result 457 states and 646 transitions. [2021-10-28 09:51:38,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:51:38,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 646 transitions. [2021-10-28 09:51:38,529 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 406 [2021-10-28 09:51:38,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 646 transitions. [2021-10-28 09:51:38,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2021-10-28 09:51:38,536 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2021-10-28 09:51:38,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 646 transitions. [2021-10-28 09:51:38,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:38,537 INFO L681 BuchiCegarLoop]: Abstraction has 457 states and 646 transitions. [2021-10-28 09:51:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 646 transitions. [2021-10-28 09:51:38,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 344. [2021-10-28 09:51:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.447674418604651) internal successors, (498), 343 states have internal predecessors, (498), 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) [2021-10-28 09:51:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 498 transitions. [2021-10-28 09:51:38,550 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-28 09:51:38,550 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-28 09:51:38,551 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 09:51:38,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 498 transitions. [2021-10-28 09:51:38,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-28 09:51:38,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:38,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:38,557 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:38,557 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:38,559 INFO L791 eck$LassoCheckResult]: Stem: 4687#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 4674#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 4664#L51 assume !(0 == mp_add_~a3~0 % 256); 4665#L51-1 mp_add_~nb~0 := 4; 4666#L61 assume !(0 == mp_add_~b3~0 % 256); 4667#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 4683#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4747#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4746#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4745#L76-2 assume !(1 == mp_add_~i~0 % 256); 4743#L77-1 assume !(2 == mp_add_~i~0 % 256); 4741#L78-1 assume !(3 == mp_add_~i~0 % 256); 4739#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 4733#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 4736#L82-2 assume !(1 == mp_add_~i~0 % 256); 4734#L83-1 assume !(2 == mp_add_~i~0 % 256); 4730#L84-1 assume !(3 == mp_add_~i~0 % 256); 4731#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4909#L87-1 [2021-10-28 09:51:38,559 INFO L793 eck$LassoCheckResult]: Loop: 4909#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4787#L91-1 assume !(1 == mp_add_~i~0 % 256); 4672#L92-1 assume !(2 == mp_add_~i~0 % 256); 4673#L93-1 assume !(3 == mp_add_~i~0 % 256); 4681#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4682#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4998#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4701#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5001#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4677#L87-1 assume !(0 == mp_add_~i~0 % 256); 4678#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4775#L92-1 assume !(2 == mp_add_~i~0 % 256); 4776#L93-1 assume !(3 == mp_add_~i~0 % 256); 4959#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4958#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4956#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4954#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4955#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4889#L87-1 assume !(0 == mp_add_~i~0 % 256); 4885#L91-1 assume !(1 == mp_add_~i~0 % 256); 4833#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 4832#L93-1 assume !(3 == mp_add_~i~0 % 256); 4829#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4717#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4718#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4822#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4823#L76-2 assume !(1 == mp_add_~i~0 % 256); 4972#L77-1 assume !(2 == mp_add_~i~0 % 256); 4969#L78-1 assume !(3 == mp_add_~i~0 % 256); 4964#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4960#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4909#L87-1 [2021-10-28 09:51:38,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 6 times [2021-10-28 09:51:38,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:38,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136338245] [2021-10-28 09:51:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:38,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:38,593 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:38,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:38,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 856847662, now seen corresponding path program 1 times [2021-10-28 09:51:38,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:38,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290240039] [2021-10-28 09:51:38,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:38,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:38,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:38,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290240039] [2021-10-28 09:51:38,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290240039] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:38,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:38,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:38,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23761035] [2021-10-28 09:51:38,740 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:38,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:51:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:51:38,741 INFO L87 Difference]: Start difference. First operand 344 states and 498 transitions. cyclomatic complexity: 156 Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-10-28 09:51:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:38,831 INFO L93 Difference]: Finished difference Result 409 states and 582 transitions. [2021-10-28 09:51:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:51:38,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 582 transitions. [2021-10-28 09:51:38,837 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 373 [2021-10-28 09:51:38,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 409 states and 582 transitions. [2021-10-28 09:51:38,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 409 [2021-10-28 09:51:38,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 409 [2021-10-28 09:51:38,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 582 transitions. [2021-10-28 09:51:38,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:38,843 INFO L681 BuchiCegarLoop]: Abstraction has 409 states and 582 transitions. [2021-10-28 09:51:38,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 582 transitions. [2021-10-28 09:51:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 344. [2021-10-28 09:51:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.433139534883721) internal successors, (493), 343 states have internal predecessors, (493), 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) [2021-10-28 09:51:38,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 493 transitions. [2021-10-28 09:51:38,853 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-28 09:51:38,854 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-28 09:51:38,854 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 09:51:38,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 493 transitions. [2021-10-28 09:51:38,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-28 09:51:38,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:38,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:38,858 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:38,858 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:38,859 INFO L791 eck$LassoCheckResult]: Stem: 5445#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 5435#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 5427#L51 assume !(0 == mp_add_~a3~0 % 256); 5428#L51-1 mp_add_~nb~0 := 4; 5429#L61 assume !(0 == mp_add_~b3~0 % 256); 5430#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 5749#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5747#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5746#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 5448#L76-2 assume !(1 == mp_add_~i~0 % 256); 5449#L77-1 assume !(2 == mp_add_~i~0 % 256); 5750#L78-1 assume !(3 == mp_add_~i~0 % 256); 5694#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5693#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5692#L82-2 assume !(1 == mp_add_~i~0 % 256); 5691#L83-1 assume !(2 == mp_add_~i~0 % 256); 5689#L84-1 assume !(3 == mp_add_~i~0 % 256); 5687#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5681#L87-1 [2021-10-28 09:51:38,859 INFO L793 eck$LassoCheckResult]: Loop: 5681#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 5678#L91-1 assume !(1 == mp_add_~i~0 % 256); 5675#L92-1 assume !(2 == mp_add_~i~0 % 256); 5672#L93-1 assume !(3 == mp_add_~i~0 % 256); 5670#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5669#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5666#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5667#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5454#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5436#L87-1 assume !(0 == mp_add_~i~0 % 256); 5437#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 5491#L92-1 assume !(2 == mp_add_~i~0 % 256); 5504#L93-1 assume !(3 == mp_add_~i~0 % 256); 5502#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5481#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5482#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5580#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5554#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5548#L87-1 assume !(0 == mp_add_~i~0 % 256); 5492#L91-1 assume !(1 == mp_add_~i~0 % 256); 5488#L92-1 assume !(2 == mp_add_~i~0 % 256); 5486#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 5485#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5479#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5480#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5530#L76 assume !(0 == mp_add_~i~0 % 256); 5566#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 5450#L77-1 assume !(2 == mp_add_~i~0 % 256); 5451#L78-1 assume !(3 == mp_add_~i~0 % 256); 5459#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5466#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5643#L82-2 assume !(1 == mp_add_~i~0 % 256); 5698#L83-1 assume !(2 == mp_add_~i~0 % 256); 5690#L84-1 assume !(3 == mp_add_~i~0 % 256); 5686#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5681#L87-1 [2021-10-28 09:51:38,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:38,860 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 7 times [2021-10-28 09:51:38,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:38,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913793676] [2021-10-28 09:51:38,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:38,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:38,890 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:38,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:38,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:38,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1265935866, now seen corresponding path program 1 times [2021-10-28 09:51:38,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:38,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117167974] [2021-10-28 09:51:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:38,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 09:51:38,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:38,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117167974] [2021-10-28 09:51:38,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117167974] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:38,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:38,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:51:38,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994400854] [2021-10-28 09:51:38,961 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:38,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:51:38,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:51:38,962 INFO L87 Difference]: Start difference. First operand 344 states and 493 transitions. cyclomatic complexity: 151 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:39,052 INFO L93 Difference]: Finished difference Result 347 states and 478 transitions. [2021-10-28 09:51:39,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:51:39,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 478 transitions. [2021-10-28 09:51:39,058 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-28 09:51:39,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 347 states and 478 transitions. [2021-10-28 09:51:39,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-10-28 09:51:39,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-10-28 09:51:39,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 478 transitions. [2021-10-28 09:51:39,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:39,064 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 478 transitions. [2021-10-28 09:51:39,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 478 transitions. [2021-10-28 09:51:39,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 311. [2021-10-28 09:51:39,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.369774919614148) internal successors, (426), 310 states have internal predecessors, (426), 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) [2021-10-28 09:51:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 426 transitions. [2021-10-28 09:51:39,073 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-28 09:51:39,074 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-28 09:51:39,074 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 09:51:39,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 426 transitions. [2021-10-28 09:51:39,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 275 [2021-10-28 09:51:39,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:39,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:39,077 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:39,078 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:39,078 INFO L791 eck$LassoCheckResult]: Stem: 6140#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 6130#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6121#L51 assume !(0 == mp_add_~a3~0 % 256); 6122#L51-1 mp_add_~nb~0 := 4; 6123#L61 assume !(0 == mp_add_~b3~0 % 256); 6124#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 6419#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6418#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6417#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6416#L76-2 assume !(1 == mp_add_~i~0 % 256); 6415#L77-1 assume !(2 == mp_add_~i~0 % 256); 6413#L78-1 assume !(3 == mp_add_~i~0 % 256); 6324#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6323#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6321#L82-2 assume !(1 == mp_add_~i~0 % 256); 6319#L83-1 assume !(2 == mp_add_~i~0 % 256); 6317#L84-1 assume !(3 == mp_add_~i~0 % 256); 6315#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6314#L87-1 [2021-10-28 09:51:39,078 INFO L793 eck$LassoCheckResult]: Loop: 6314#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 6313#L91-1 assume !(1 == mp_add_~i~0 % 256); 6312#L92-1 assume !(2 == mp_add_~i~0 % 256); 6311#L93-1 assume !(3 == mp_add_~i~0 % 256); 6310#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6309#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6307#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6308#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6163#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6234#L87-1 assume !(0 == mp_add_~i~0 % 256); 6206#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 6183#L92-1 assume !(2 == mp_add_~i~0 % 256); 6197#L93-1 assume !(3 == mp_add_~i~0 % 256); 6194#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6189#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6157#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6158#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6147#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6148#L87-1 assume !(0 == mp_add_~i~0 % 256); 6182#L91-1 assume !(1 == mp_add_~i~0 % 256); 6180#L92-1 assume !(2 == mp_add_~i~0 % 256); 6177#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 6175#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6171#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6172#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6210#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6278#L76-2 assume !(1 == mp_add_~i~0 % 256); 6244#L77-1 assume !(2 == mp_add_~i~0 % 256); 6245#L78-1 assume !(3 == mp_add_~i~0 % 256); 6240#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6241#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6322#L82-2 assume !(1 == mp_add_~i~0 % 256); 6320#L83-1 assume !(2 == mp_add_~i~0 % 256); 6318#L84-1 assume !(3 == mp_add_~i~0 % 256); 6316#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6314#L87-1 [2021-10-28 09:51:39,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:39,079 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 8 times [2021-10-28 09:51:39,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:39,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476833452] [2021-10-28 09:51:39,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:39,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:39,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:39,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:39,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:39,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1955946050, now seen corresponding path program 1 times [2021-10-28 09:51:39,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:39,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399467252] [2021-10-28 09:51:39,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:39,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:51:39,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:39,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399467252] [2021-10-28 09:51:39,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399467252] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:39,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224389851] [2021-10-28 09:51:39,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:39,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:39,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:39,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:39,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:51:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:39,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:51:39,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:51:39,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224389851] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:39,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:51:39,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-28 09:51:39,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632209454] [2021-10-28 09:51:39,448 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:39,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:39,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:51:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:51:39,449 INFO L87 Difference]: Start difference. First operand 311 states and 426 transitions. cyclomatic complexity: 117 Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2021-10-28 09:51:40,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:40,173 INFO L93 Difference]: Finished difference Result 414 states and 525 transitions. [2021-10-28 09:51:40,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:51:40,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 525 transitions. [2021-10-28 09:51:40,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 373 [2021-10-28 09:51:40,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 414 states and 525 transitions. [2021-10-28 09:51:40,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 414 [2021-10-28 09:51:40,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 414 [2021-10-28 09:51:40,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 525 transitions. [2021-10-28 09:51:40,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:40,184 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 525 transitions. [2021-10-28 09:51:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 525 transitions. [2021-10-28 09:51:40,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-10-28 09:51:40,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.3082437275985663) internal successors, (365), 278 states have internal predecessors, (365), 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) [2021-10-28 09:51:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2021-10-28 09:51:40,226 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-28 09:51:40,226 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-28 09:51:40,226 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 09:51:40,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 365 transitions. [2021-10-28 09:51:40,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 243 [2021-10-28 09:51:40,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:40,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:40,230 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:40,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:40,230 INFO L791 eck$LassoCheckResult]: Stem: 7015#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 7003#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6994#L51 assume !(0 == mp_add_~a3~0 % 256); 6995#L51-1 mp_add_~nb~0 := 4; 6996#L61 assume !(0 == mp_add_~b3~0 % 256); 6997#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 7011#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7233#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7232#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7231#L76-2 assume !(1 == mp_add_~i~0 % 256); 7229#L77-1 assume !(2 == mp_add_~i~0 % 256); 7227#L78-1 assume !(3 == mp_add_~i~0 % 256); 7225#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7219#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7222#L82-2 assume !(1 == mp_add_~i~0 % 256); 7220#L83-1 assume !(2 == mp_add_~i~0 % 256); 7216#L84-1 assume !(3 == mp_add_~i~0 % 256); 7217#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7244#L87-1 [2021-10-28 09:51:40,230 INFO L793 eck$LassoCheckResult]: Loop: 7244#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7242#L91-1 assume !(1 == mp_add_~i~0 % 256); 7211#L92-1 assume !(2 == mp_add_~i~0 % 256); 7209#L93-1 assume !(3 == mp_add_~i~0 % 256); 7210#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7205#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7206#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7202#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7201#L82 assume !(0 == mp_add_~i~0 % 256); 7200#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 7181#L83-1 assume !(2 == mp_add_~i~0 % 256); 7198#L84-1 assume !(3 == mp_add_~i~0 % 256); 7196#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7195#L87-1 assume !(0 == mp_add_~i~0 % 256); 7194#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7094#L92-1 assume !(2 == mp_add_~i~0 % 256); 7191#L93-1 assume !(3 == mp_add_~i~0 % 256); 7189#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7187#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7185#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7167#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7183#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7158#L87-1 assume !(0 == mp_add_~i~0 % 256); 7000#L91-1 assume !(1 == mp_add_~i~0 % 256); 7001#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7002#L93-1 assume !(3 == mp_add_~i~0 % 256); 7048#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7046#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7047#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7129#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7130#L76-2 assume !(1 == mp_add_~i~0 % 256); 7252#L77-1 assume !(2 == mp_add_~i~0 % 256); 7251#L78-1 assume !(3 == mp_add_~i~0 % 256); 7248#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7249#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7258#L82-2 assume !(1 == mp_add_~i~0 % 256); 7256#L83-1 assume !(2 == mp_add_~i~0 % 256); 7254#L84-1 assume !(3 == mp_add_~i~0 % 256); 7245#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7244#L87-1 [2021-10-28 09:51:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:40,231 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 9 times [2021-10-28 09:51:40,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:40,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333069297] [2021-10-28 09:51:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:40,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:40,254 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:40,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:40,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:40,286 INFO L85 PathProgramCache]: Analyzing trace with hash -593187128, now seen corresponding path program 1 times [2021-10-28 09:51:40,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:40,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356595937] [2021-10-28 09:51:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:40,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:40,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:40,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356595937] [2021-10-28 09:51:40,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356595937] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:40,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441191604] [2021-10-28 09:51:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:40,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:40,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:40,434 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:40,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:51:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:40,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:51:40,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 09:51:40,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441191604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:40,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:51:40,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-10-28 09:51:40,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837504968] [2021-10-28 09:51:40,726 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:40,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:51:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:51:40,727 INFO L87 Difference]: Start difference. First operand 279 states and 365 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:40,951 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2021-10-28 09:51:40,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:51:40,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 348 states and 433 transitions. [2021-10-28 09:51:40,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 312 [2021-10-28 09:51:40,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 348 states to 348 states and 433 transitions. [2021-10-28 09:51:40,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2021-10-28 09:51:40,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2021-10-28 09:51:40,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 433 transitions. [2021-10-28 09:51:40,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:40,961 INFO L681 BuchiCegarLoop]: Abstraction has 348 states and 433 transitions. [2021-10-28 09:51:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 433 transitions. [2021-10-28 09:51:40,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 292. [2021-10-28 09:51:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 292 states have (on average 1.2671232876712328) internal successors, (370), 291 states have internal predecessors, (370), 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) [2021-10-28 09:51:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 370 transitions. [2021-10-28 09:51:40,969 INFO L704 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-28 09:51:40,969 INFO L587 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-28 09:51:40,969 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-28 09:51:40,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states and 370 transitions. [2021-10-28 09:51:40,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 256 [2021-10-28 09:51:40,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:40,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:40,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:40,973 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:40,973 INFO L791 eck$LassoCheckResult]: Stem: 7768#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 7758#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 7750#L51 assume !(0 == mp_add_~a3~0 % 256); 7751#L51-1 mp_add_~nb~0 := 4; 7752#L61 assume !(0 == mp_add_~b3~0 % 256); 7753#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 8017#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8015#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8013#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8011#L76-2 assume !(1 == mp_add_~i~0 % 256); 8009#L77-1 assume !(2 == mp_add_~i~0 % 256); 8006#L78-1 assume !(3 == mp_add_~i~0 % 256); 7991#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7990#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7989#L82-2 assume !(1 == mp_add_~i~0 % 256); 7988#L83-1 assume !(2 == mp_add_~i~0 % 256); 7987#L84-1 assume !(3 == mp_add_~i~0 % 256); 7964#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7962#L87-1 [2021-10-28 09:51:40,974 INFO L793 eck$LassoCheckResult]: Loop: 7962#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7960#L91-1 assume !(1 == mp_add_~i~0 % 256); 7959#L92-1 assume !(2 == mp_add_~i~0 % 256); 7957#L93-1 assume !(3 == mp_add_~i~0 % 256); 7955#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7953#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7952#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7927#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7841#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7842#L87-1 assume !(0 == mp_add_~i~0 % 256); 7835#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7815#L92-1 assume !(2 == mp_add_~i~0 % 256); 7827#L93-1 assume !(3 == mp_add_~i~0 % 256); 7828#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7817#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7818#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8030#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8038#L82 assume !(0 == mp_add_~i~0 % 256); 8037#L82-2 assume !(1 == mp_add_~i~0 % 256); 8036#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 7780#L84-1 assume !(3 == mp_add_~i~0 % 256); 7774#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7759#L87-1 assume !(0 == mp_add_~i~0 % 256); 7760#L91-1 assume !(1 == mp_add_~i~0 % 256); 7821#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7811#L93-1 assume !(3 == mp_add_~i~0 % 256); 7819#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7785#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7786#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7918#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7917#L82 assume !(0 == mp_add_~i~0 % 256); 7916#L82-2 assume !(1 == mp_add_~i~0 % 256); 7915#L83-1 assume !(2 == mp_add_~i~0 % 256); 7914#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 7911#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7826#L87-1 assume !(0 == mp_add_~i~0 % 256); 7813#L91-1 assume !(1 == mp_add_~i~0 % 256); 7809#L92-1 assume !(2 == mp_add_~i~0 % 256); 7805#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 7803#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7800#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7801#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7908#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7909#L76-2 assume !(1 == mp_add_~i~0 % 256); 7986#L77-1 assume !(2 == mp_add_~i~0 % 256); 7985#L78-1 assume !(3 == mp_add_~i~0 % 256); 7984#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7970#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7981#L82-2 assume !(1 == mp_add_~i~0 % 256); 7979#L83-1 assume !(2 == mp_add_~i~0 % 256); 7968#L84-1 assume !(3 == mp_add_~i~0 % 256); 7966#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7962#L87-1 [2021-10-28 09:51:40,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:40,974 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 10 times [2021-10-28 09:51:40,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:40,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970036265] [2021-10-28 09:51:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:40,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:40,990 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:41,009 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:41,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:41,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1797868163, now seen corresponding path program 1 times [2021-10-28 09:51:41,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:41,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867771008] [2021-10-28 09:51:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:41,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:51:41,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:41,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867771008] [2021-10-28 09:51:41,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867771008] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:41,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:41,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:51:41,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46141185] [2021-10-28 09:51:41,089 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:41,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:41,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:51:41,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:51:41,090 INFO L87 Difference]: Start difference. First operand 292 states and 370 transitions. cyclomatic complexity: 80 Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-10-28 09:51:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:41,466 INFO L93 Difference]: Finished difference Result 588 states and 723 transitions. [2021-10-28 09:51:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:51:41,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 588 states and 723 transitions. [2021-10-28 09:51:41,473 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2021-10-28 09:51:41,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 588 states to 579 states and 712 transitions. [2021-10-28 09:51:41,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2021-10-28 09:51:41,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2021-10-28 09:51:41,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 712 transitions. [2021-10-28 09:51:41,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:41,482 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 712 transitions. [2021-10-28 09:51:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 712 transitions. [2021-10-28 09:51:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 466. [2021-10-28 09:51:41,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 466 states have (on average 1.2489270386266094) internal successors, (582), 465 states have internal predecessors, (582), 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) [2021-10-28 09:51:41,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 582 transitions. [2021-10-28 09:51:41,495 INFO L704 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-28 09:51:41,495 INFO L587 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-28 09:51:41,496 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-28 09:51:41,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 466 states and 582 transitions. [2021-10-28 09:51:41,499 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 392 [2021-10-28 09:51:41,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:41,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:41,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:41,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:41,502 INFO L791 eck$LassoCheckResult]: Stem: 8666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 8656#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 8648#L51 assume !(0 == mp_add_~a3~0 % 256); 8649#L51-1 mp_add_~nb~0 := 4; 8650#L61 assume !(0 == mp_add_~b3~0 % 256); 8651#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 9035#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 9033#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8684#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8685#L76-2 assume !(1 == mp_add_~i~0 % 256); 9068#L77-1 assume !(2 == mp_add_~i~0 % 256); 9066#L78-1 assume !(3 == mp_add_~i~0 % 256); 9064#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9022#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9058#L82-2 assume !(1 == mp_add_~i~0 % 256); 9055#L83-1 assume !(2 == mp_add_~i~0 % 256); 9052#L84-1 assume !(3 == mp_add_~i~0 % 256); 9049#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 9020#L87-1 [2021-10-28 09:51:41,502 INFO L793 eck$LassoCheckResult]: Loop: 9020#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 9017#L91-1 assume !(1 == mp_add_~i~0 % 256); 9014#L92-1 assume !(2 == mp_add_~i~0 % 256); 9010#L93-1 assume !(3 == mp_add_~i~0 % 256); 9006#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 9001#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8994#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8984#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8981#L82 assume !(0 == mp_add_~i~0 % 256); 8979#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 8933#L83-1 assume !(2 == mp_add_~i~0 % 256); 8976#L84-1 assume !(3 == mp_add_~i~0 % 256); 8973#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 8971#L87-1 assume !(0 == mp_add_~i~0 % 256); 8969#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 8889#L92-1 assume !(2 == mp_add_~i~0 % 256); 8964#L93-1 assume !(3 == mp_add_~i~0 % 256); 8961#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8958#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8955#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8916#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8726#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 8724#L87-1 assume !(0 == mp_add_~i~0 % 256); 8723#L91-1 assume !(1 == mp_add_~i~0 % 256); 8706#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 8704#L93-1 assume !(3 == mp_add_~i~0 % 256); 8702#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8703#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8751#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8752#L76 assume !(0 == mp_add_~i~0 % 256); 8780#L76-2 assume !(1 == mp_add_~i~0 % 256); 8776#L77-1 assume !(2 == mp_add_~i~0 % 256); 8777#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 8748#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8730#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 8729#L87-1 assume !(0 == mp_add_~i~0 % 256); 8728#L91-1 assume !(1 == mp_add_~i~0 % 256); 8727#L92-1 assume !(2 == mp_add_~i~0 % 256); 8713#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 8714#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8709#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8710#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8874#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8895#L76-2 assume !(1 == mp_add_~i~0 % 256); 9110#L77-1 assume !(2 == mp_add_~i~0 % 256); 9108#L78-1 assume !(3 == mp_add_~i~0 % 256); 9061#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9059#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9056#L82-2 assume !(1 == mp_add_~i~0 % 256); 9053#L83-1 assume !(2 == mp_add_~i~0 % 256); 9050#L84-1 assume !(3 == mp_add_~i~0 % 256); 9025#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 9020#L87-1 [2021-10-28 09:51:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:41,503 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 11 times [2021-10-28 09:51:41,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:41,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284962640] [2021-10-28 09:51:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:41,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:41,521 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:41,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 302130057, now seen corresponding path program 1 times [2021-10-28 09:51:41,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:41,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92860270] [2021-10-28 09:51:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:41,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 09:51:41,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:41,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92860270] [2021-10-28 09:51:41,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92860270] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:41,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016919859] [2021-10-28 09:51:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:41,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:41,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:41,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:41,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:51:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:41,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:51:41,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 09:51:42,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016919859] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:42,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:51:42,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 09:51:42,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169405858] [2021-10-28 09:51:42,045 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:42,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:42,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:51:42,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:51:42,046 INFO L87 Difference]: Start difference. First operand 466 states and 582 transitions. cyclomatic complexity: 119 Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:43,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:43,014 INFO L93 Difference]: Finished difference Result 963 states and 1187 transitions. [2021-10-28 09:51:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:51:43,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1187 transitions. [2021-10-28 09:51:43,023 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 804 [2021-10-28 09:51:43,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 961 states and 1185 transitions. [2021-10-28 09:51:43,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2021-10-28 09:51:43,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2021-10-28 09:51:43,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1185 transitions. [2021-10-28 09:51:43,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:43,035 INFO L681 BuchiCegarLoop]: Abstraction has 961 states and 1185 transitions. [2021-10-28 09:51:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1185 transitions. [2021-10-28 09:51:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 689. [2021-10-28 09:51:43,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 689 states have (on average 1.274310595065312) internal successors, (878), 688 states have internal predecessors, (878), 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) [2021-10-28 09:51:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 878 transitions. [2021-10-28 09:51:43,053 INFO L704 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-28 09:51:43,053 INFO L587 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-28 09:51:43,053 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-28 09:51:43,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 689 states and 878 transitions. [2021-10-28 09:51:43,058 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 615 [2021-10-28 09:51:43,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:43,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:43,059 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:43,059 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:43,059 INFO L791 eck$LassoCheckResult]: Stem: 10290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 10279#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 10272#L51 assume !(0 == mp_add_~a3~0 % 256); 10273#L51-1 mp_add_~nb~0 := 4; 10274#L61 assume !(0 == mp_add_~b3~0 % 256); 10275#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 10694#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10695#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10689#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10690#L76-2 assume !(1 == mp_add_~i~0 % 256); 10673#L77-1 assume !(2 == mp_add_~i~0 % 256); 10674#L78-1 assume !(3 == mp_add_~i~0 % 256); 10651#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10650#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10648#L82-2 assume !(1 == mp_add_~i~0 % 256); 10646#L83-1 assume !(2 == mp_add_~i~0 % 256); 10644#L84-1 assume !(3 == mp_add_~i~0 % 256); 10605#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10601#L87-1 [2021-10-28 09:51:43,059 INFO L793 eck$LassoCheckResult]: Loop: 10601#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 10597#L91-1 assume !(1 == mp_add_~i~0 % 256); 10594#L92-1 assume !(2 == mp_add_~i~0 % 256); 10591#L93-1 assume !(3 == mp_add_~i~0 % 256); 10588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10585#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10580#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10576#L76 assume !(0 == mp_add_~i~0 % 256); 10572#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 10541#L77-1 assume !(2 == mp_add_~i~0 % 256); 10567#L78-1 assume !(3 == mp_add_~i~0 % 256); 10563#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10534#L82 assume !(0 == mp_add_~i~0 % 256); 10532#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 10431#L83-1 assume !(2 == mp_add_~i~0 % 256); 10521#L84-1 assume !(3 == mp_add_~i~0 % 256); 10519#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10518#L87-1 assume !(0 == mp_add_~i~0 % 256); 10516#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 10515#L92-1 assume !(2 == mp_add_~i~0 % 256); 10514#L93-1 assume !(3 == mp_add_~i~0 % 256); 10512#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10510#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10507#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10505#L76 assume !(0 == mp_add_~i~0 % 256); 10504#L76-2 assume !(1 == mp_add_~i~0 % 256); 10498#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 10424#L78-1 assume !(3 == mp_add_~i~0 % 256); 10425#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 10418#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10416#L87-1 assume !(0 == mp_add_~i~0 % 256); 10417#L91-1 assume !(1 == mp_add_~i~0 % 256); 10530#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 10410#L93-1 assume !(3 == mp_add_~i~0 % 256); 10526#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10524#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10522#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 10523#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 10583#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 10564#L87-1 assume !(0 == mp_add_~i~0 % 256); 10664#L91-1 assume !(1 == mp_add_~i~0 % 256); 10658#L92-1 assume !(2 == mp_add_~i~0 % 256); 10643#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 10490#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10487#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10483#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10477#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10478#L76-2 assume !(1 == mp_add_~i~0 % 256); 10654#L77-1 assume !(2 == mp_add_~i~0 % 256); 10653#L78-1 assume !(3 == mp_add_~i~0 % 256); 10652#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10610#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10649#L82-2 assume !(1 == mp_add_~i~0 % 256); 10647#L83-1 assume !(2 == mp_add_~i~0 % 256); 10645#L84-1 assume !(3 == mp_add_~i~0 % 256); 10641#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10601#L87-1 [2021-10-28 09:51:43,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:43,060 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 12 times [2021-10-28 09:51:43,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:43,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104277989] [2021-10-28 09:51:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:43,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:43,075 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:43,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:43,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:43,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2112972027, now seen corresponding path program 1 times [2021-10-28 09:51:43,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:43,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138328488] [2021-10-28 09:51:43,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:43,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 19 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:43,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:43,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138328488] [2021-10-28 09:51:43,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138328488] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:43,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773173290] [2021-10-28 09:51:43,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:43,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:43,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:43,189 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:43,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:51:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:43,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:51:43,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-28 09:51:43,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773173290] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:43,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:51:43,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-28 09:51:43,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142300172] [2021-10-28 09:51:43,624 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:43,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:51:43,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:51:43,625 INFO L87 Difference]: Start difference. First operand 689 states and 878 transitions. cyclomatic complexity: 194 Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-10-28 09:51:43,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:43,921 INFO L93 Difference]: Finished difference Result 785 states and 918 transitions. [2021-10-28 09:51:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:51:43,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 785 states and 918 transitions. [2021-10-28 09:51:43,928 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 696 [2021-10-28 09:51:43,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 785 states to 738 states and 848 transitions. [2021-10-28 09:51:43,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 738 [2021-10-28 09:51:43,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 738 [2021-10-28 09:51:43,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 738 states and 848 transitions. [2021-10-28 09:51:43,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:43,936 INFO L681 BuchiCegarLoop]: Abstraction has 738 states and 848 transitions. [2021-10-28 09:51:43,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states and 848 transitions. [2021-10-28 09:51:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 601. [2021-10-28 09:51:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 601 states have (on average 1.1763727121464227) internal successors, (707), 600 states have internal predecessors, (707), 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) [2021-10-28 09:51:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 707 transitions. [2021-10-28 09:51:43,951 INFO L704 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-28 09:51:43,951 INFO L587 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-28 09:51:43,951 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-28 09:51:43,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 601 states and 707 transitions. [2021-10-28 09:51:43,955 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-28 09:51:43,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:43,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:43,956 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:43,957 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:43,957 INFO L791 eck$LassoCheckResult]: Stem: 11940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 11932#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 11924#L51 assume !(0 == mp_add_~a3~0 % 256); 11925#L51-1 mp_add_~nb~0 := 4; 11926#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11928#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11929#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11960#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 12261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12262#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12255#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12256#L76-2 assume !(1 == mp_add_~i~0 % 256); 12250#L77-1 assume !(2 == mp_add_~i~0 % 256); 12251#L78-1 assume !(3 == mp_add_~i~0 % 256); 12292#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12178#L81 [2021-10-28 09:51:43,957 INFO L793 eck$LassoCheckResult]: Loop: 12178#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12149#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 12291#L91-1 assume !(1 == mp_add_~i~0 % 256); 12290#L92-1 assume !(2 == mp_add_~i~0 % 256); 12289#L93-1 assume !(3 == mp_add_~i~0 % 256); 12288#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12287#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12286#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12285#L76 assume !(0 == mp_add_~i~0 % 256); 12284#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 12181#L77-1 assume !(2 == mp_add_~i~0 % 256); 12283#L78-1 assume !(3 == mp_add_~i~0 % 256); 12282#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12114#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12116#L87-1 assume !(0 == mp_add_~i~0 % 256); 12281#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 12020#L92-1 assume !(2 == mp_add_~i~0 % 256); 12280#L93-1 assume !(3 == mp_add_~i~0 % 256); 12279#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12278#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12277#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12276#L76 assume !(0 == mp_add_~i~0 % 256); 12275#L76-2 assume !(1 == mp_add_~i~0 % 256); 12274#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 12176#L78-1 assume !(3 == mp_add_~i~0 % 256); 12084#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12273#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12063#L87-1 assume !(0 == mp_add_~i~0 % 256); 12272#L91-1 assume !(1 == mp_add_~i~0 % 256); 12271#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 12124#L93-1 assume !(3 == mp_add_~i~0 % 256); 12270#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12269#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12268#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12267#L76 assume !(0 == mp_add_~i~0 % 256); 12266#L76-2 assume !(1 == mp_add_~i~0 % 256); 12265#L77-1 assume !(2 == mp_add_~i~0 % 256); 12252#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 12047#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12246#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12211#L87-1 assume !(0 == mp_add_~i~0 % 256); 12242#L91-1 assume !(1 == mp_add_~i~0 % 256); 12240#L92-1 assume !(2 == mp_add_~i~0 % 256); 12226#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 12010#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12011#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11998#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 11992#L76 assume !(0 == mp_add_~i~0 % 256); 11989#L76-2 assume !(1 == mp_add_~i~0 % 256); 11985#L77-1 assume !(2 == mp_add_~i~0 % 256); 11986#L78-1 assume !(3 == mp_add_~i~0 % 256); 12203#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12198#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12192#L87-1 assume !(0 == mp_add_~i~0 % 256); 12142#L91-1 assume !(1 == mp_add_~i~0 % 256); 12140#L92-1 assume !(2 == mp_add_~i~0 % 256); 12121#L93-1 assume !(3 == mp_add_~i~0 % 256); 12099#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12008#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12009#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12184#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12185#L76-2 assume !(1 == mp_add_~i~0 % 256); 12186#L77-1 assume !(2 == mp_add_~i~0 % 256); 12182#L78-1 assume !(3 == mp_add_~i~0 % 256); 12177#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12178#L81 [2021-10-28 09:51:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:43,958 INFO L85 PathProgramCache]: Analyzing trace with hash -890288343, now seen corresponding path program 1 times [2021-10-28 09:51:43,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:43,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083079412] [2021-10-28 09:51:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:43,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:44,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:44,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083079412] [2021-10-28 09:51:44,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083079412] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:44,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:44,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:51:44,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307306670] [2021-10-28 09:51:44,060 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:51:44,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:44,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1197554810, now seen corresponding path program 1 times [2021-10-28 09:51:44,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:44,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407583336] [2021-10-28 09:51:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:44,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 24 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:44,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:44,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407583336] [2021-10-28 09:51:44,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407583336] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:44,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037520035] [2021-10-28 09:51:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:44,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:44,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:44,185 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:44,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:51:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:44,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:51:44,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:45,047 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 83 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-28 09:51:45,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037520035] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:45,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:51:45,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2021-10-28 09:51:45,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946882653] [2021-10-28 09:51:45,048 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:45,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:45,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:51:45,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:51:45,049 INFO L87 Difference]: Start difference. First operand 601 states and 707 transitions. cyclomatic complexity: 111 Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:45,800 INFO L93 Difference]: Finished difference Result 2371 states and 2782 transitions. [2021-10-28 09:51:45,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:51:45,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2371 states and 2782 transitions. [2021-10-28 09:51:45,823 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 2264 [2021-10-28 09:51:45,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2371 states to 2371 states and 2782 transitions. [2021-10-28 09:51:45,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2371 [2021-10-28 09:51:45,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2371 [2021-10-28 09:51:45,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2371 states and 2782 transitions. [2021-10-28 09:51:45,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:45,852 INFO L681 BuchiCegarLoop]: Abstraction has 2371 states and 2782 transitions. [2021-10-28 09:51:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states and 2782 transitions. [2021-10-28 09:51:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 593. [2021-10-28 09:51:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 593 states have (on average 1.1770657672849916) internal successors, (698), 592 states have internal predecessors, (698), 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) [2021-10-28 09:51:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 698 transitions. [2021-10-28 09:51:45,880 INFO L704 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-28 09:51:45,880 INFO L587 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-28 09:51:45,880 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-28 09:51:45,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 593 states and 698 transitions. [2021-10-28 09:51:45,884 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-28 09:51:45,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:45,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:45,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:45,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:45,886 INFO L791 eck$LassoCheckResult]: Stem: 15128#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 15119#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 15110#L51 assume !(0 == mp_add_~a3~0 % 256); 15111#L51-1 mp_add_~nb~0 := 4; 15112#L61 assume !(0 == mp_add_~b3~0 % 256); 15113#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 15126#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15484#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15483#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 15482#L76-2 assume !(1 == mp_add_~i~0 % 256); 15481#L77-1 assume !(2 == mp_add_~i~0 % 256); 15480#L78-1 assume !(3 == mp_add_~i~0 % 256); 15478#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15479#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 15699#L82-2 assume !(1 == mp_add_~i~0 % 256); 15698#L83-1 assume !(2 == mp_add_~i~0 % 256); 15697#L84-1 assume !(3 == mp_add_~i~0 % 256); 15696#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15406#L87-1 [2021-10-28 09:51:45,886 INFO L793 eck$LassoCheckResult]: Loop: 15406#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 15401#L91-1 assume !(1 == mp_add_~i~0 % 256); 15396#L92-1 assume !(2 == mp_add_~i~0 % 256); 15390#L93-1 assume !(3 == mp_add_~i~0 % 256); 15367#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15365#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15361#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15358#L76 assume !(0 == mp_add_~i~0 % 256); 15355#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 15353#L77-1 assume !(2 == mp_add_~i~0 % 256); 15350#L78-1 assume !(3 == mp_add_~i~0 % 256); 15344#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15340#L82 assume !(0 == mp_add_~i~0 % 256); 15338#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 15336#L83-1 assume !(2 == mp_add_~i~0 % 256); 15334#L84-1 assume !(3 == mp_add_~i~0 % 256); 15331#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15329#L87-1 assume !(0 == mp_add_~i~0 % 256); 15327#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 15323#L92-1 assume !(2 == mp_add_~i~0 % 256); 15319#L93-1 assume !(3 == mp_add_~i~0 % 256); 15316#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15313#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15311#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 15287#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 15275#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 15272#L87-1 assume !(0 == mp_add_~i~0 % 256); 15270#L91-1 assume !(1 == mp_add_~i~0 % 256); 15266#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 15261#L93-1 assume !(3 == mp_add_~i~0 % 256); 15257#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15253#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15248#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15241#L76 assume !(0 == mp_add_~i~0 % 256); 15236#L76-2 assume !(1 == mp_add_~i~0 % 256); 15231#L77-1 assume !(2 == mp_add_~i~0 % 256); 15226#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 15219#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15217#L82 assume !(0 == mp_add_~i~0 % 256); 15216#L82-2 assume !(1 == mp_add_~i~0 % 256); 15215#L83-1 assume !(2 == mp_add_~i~0 % 256); 15212#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 15213#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15202#L87-1 assume !(0 == mp_add_~i~0 % 256); 15203#L91-1 assume !(1 == mp_add_~i~0 % 256); 15194#L92-1 assume !(2 == mp_add_~i~0 % 256); 15195#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 15190#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15191#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15185#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 15187#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 15439#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 15438#L87-1 assume !(0 == mp_add_~i~0 % 256); 15437#L91-1 assume !(1 == mp_add_~i~0 % 256); 15436#L92-1 assume !(2 == mp_add_~i~0 % 256); 15260#L93-1 assume !(3 == mp_add_~i~0 % 256); 15256#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15252#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15246#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15239#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 15240#L76-2 assume !(1 == mp_add_~i~0 % 256); 15476#L77-1 assume !(2 == mp_add_~i~0 % 256); 15475#L78-1 assume !(3 == mp_add_~i~0 % 256); 15473#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15474#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 15477#L82-2 assume !(1 == mp_add_~i~0 % 256); 15451#L83-1 assume !(2 == mp_add_~i~0 % 256); 15412#L84-1 assume !(3 == mp_add_~i~0 % 256); 15409#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15406#L87-1 [2021-10-28 09:51:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 13 times [2021-10-28 09:51:45,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:45,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113407810] [2021-10-28 09:51:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:45,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:45,905 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:45,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:45,924 INFO L85 PathProgramCache]: Analyzing trace with hash -455989548, now seen corresponding path program 1 times [2021-10-28 09:51:45,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:45,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891123148] [2021-10-28 09:51:45,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:45,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-28 09:51:46,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:46,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891123148] [2021-10-28 09:51:46,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891123148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:46,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:46,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:51:46,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211909098] [2021-10-28 09:51:46,029 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:46,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:51:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:51:46,030 INFO L87 Difference]: Start difference. First operand 593 states and 698 transitions. cyclomatic complexity: 110 Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:46,536 INFO L93 Difference]: Finished difference Result 836 states and 964 transitions. [2021-10-28 09:51:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:51:46,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 964 transitions. [2021-10-28 09:51:46,543 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 753 [2021-10-28 09:51:46,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 819 states and 945 transitions. [2021-10-28 09:51:46,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 819 [2021-10-28 09:51:46,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 819 [2021-10-28 09:51:46,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 819 states and 945 transitions. [2021-10-28 09:51:46,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:46,553 INFO L681 BuchiCegarLoop]: Abstraction has 819 states and 945 transitions. [2021-10-28 09:51:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states and 945 transitions. [2021-10-28 09:51:46,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 712. [2021-10-28 09:51:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 712 states have (on average 1.1713483146067416) internal successors, (834), 711 states have internal predecessors, (834), 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) [2021-10-28 09:51:46,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 834 transitions. [2021-10-28 09:51:46,575 INFO L704 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-28 09:51:46,575 INFO L587 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-28 09:51:46,575 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-28 09:51:46,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 712 states and 834 transitions. [2021-10-28 09:51:46,579 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 685 [2021-10-28 09:51:46,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:46,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:46,583 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:46,583 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:46,584 INFO L791 eck$LassoCheckResult]: Stem: 16584#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 16576#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 16568#L51 assume !(0 == mp_add_~a3~0 % 256); 16569#L51-1 mp_add_~nb~0 := 4; 16570#L61 assume !(0 == mp_add_~b3~0 % 256); 16571#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 16581#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16854#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16852#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16853#L76-2 assume !(1 == mp_add_~i~0 % 256); 16848#L77-1 assume !(2 == mp_add_~i~0 % 256); 16849#L78-1 assume !(3 == mp_add_~i~0 % 256); 16842#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16843#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 16832#L82-2 assume !(1 == mp_add_~i~0 % 256); 16833#L83-1 assume !(2 == mp_add_~i~0 % 256); 16821#L84-1 assume !(3 == mp_add_~i~0 % 256); 16822#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16799#L87-1 [2021-10-28 09:51:46,584 INFO L793 eck$LassoCheckResult]: Loop: 16799#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 16797#L91-1 assume !(1 == mp_add_~i~0 % 256); 16795#L92-1 assume !(2 == mp_add_~i~0 % 256); 16793#L93-1 assume !(3 == mp_add_~i~0 % 256); 16791#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16789#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16785#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16782#L76 assume !(0 == mp_add_~i~0 % 256); 16779#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 16777#L77-1 assume !(2 == mp_add_~i~0 % 256); 16765#L78-1 assume !(3 == mp_add_~i~0 % 256); 16766#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16772#L82 assume !(0 == mp_add_~i~0 % 256); 16771#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 16770#L83-1 assume !(2 == mp_add_~i~0 % 256); 16768#L84-1 assume !(3 == mp_add_~i~0 % 256); 16762#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16759#L87-1 assume !(0 == mp_add_~i~0 % 256); 16756#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 16752#L92-1 assume !(2 == mp_add_~i~0 % 256); 16748#L93-1 assume !(3 == mp_add_~i~0 % 256); 16745#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16742#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16738#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16735#L76 assume !(0 == mp_add_~i~0 % 256); 16731#L76-2 assume !(1 == mp_add_~i~0 % 256); 16727#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 16721#L78-1 assume !(3 == mp_add_~i~0 % 256); 16716#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16710#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16708#L87-1 assume !(0 == mp_add_~i~0 % 256); 16706#L91-1 assume !(1 == mp_add_~i~0 % 256); 16694#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 16691#L93-1 assume !(3 == mp_add_~i~0 % 256); 16687#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16683#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16676#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 16677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16653#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 16644#L87-1 assume !(0 == mp_add_~i~0 % 256); 16894#L91-1 assume !(1 == mp_add_~i~0 % 256); 16891#L92-1 assume !(2 == mp_add_~i~0 % 256); 16889#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 16874#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16828#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16829#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16869#L76 assume !(0 == mp_add_~i~0 % 256); 16872#L76-2 assume !(1 == mp_add_~i~0 % 256); 16871#L77-1 assume !(2 == mp_add_~i~0 % 256); 16870#L78-1 assume !(3 == mp_add_~i~0 % 256); 16868#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16861#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 16860#L87-1 assume !(0 == mp_add_~i~0 % 256); 16859#L91-1 assume !(1 == mp_add_~i~0 % 256); 16858#L92-1 assume !(2 == mp_add_~i~0 % 256); 16850#L93-1 assume !(3 == mp_add_~i~0 % 256); 16689#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16685#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16680#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16672#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16673#L76-2 assume !(1 == mp_add_~i~0 % 256); 16851#L77-1 assume !(2 == mp_add_~i~0 % 256); 16846#L78-1 assume !(3 == mp_add_~i~0 % 256); 16847#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16838#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 16839#L82-2 assume !(1 == mp_add_~i~0 % 256); 16826#L83-1 assume !(2 == mp_add_~i~0 % 256); 16827#L84-1 assume !(3 == mp_add_~i~0 % 256); 16801#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16799#L87-1 [2021-10-28 09:51:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:46,585 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 14 times [2021-10-28 09:51:46,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:46,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180092851] [2021-10-28 09:51:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:46,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:46,604 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:46,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:46,649 INFO L85 PathProgramCache]: Analyzing trace with hash 733714482, now seen corresponding path program 2 times [2021-10-28 09:51:46,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:46,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618384760] [2021-10-28 09:51:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:46,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:51:46,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:46,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618384760] [2021-10-28 09:51:46,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618384760] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:46,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:46,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:51:46,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994313547] [2021-10-28 09:51:46,798 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:51:46,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:46,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:51:46,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:51:46,799 INFO L87 Difference]: Start difference. First operand 712 states and 834 transitions. cyclomatic complexity: 128 Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:47,455 INFO L93 Difference]: Finished difference Result 936 states and 1081 transitions. [2021-10-28 09:51:47,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:51:47,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 936 states and 1081 transitions. [2021-10-28 09:51:47,465 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 842 [2021-10-28 09:51:47,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 936 states to 918 states and 1062 transitions. [2021-10-28 09:51:47,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 918 [2021-10-28 09:51:47,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 918 [2021-10-28 09:51:47,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 918 states and 1062 transitions. [2021-10-28 09:51:47,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:47,477 INFO L681 BuchiCegarLoop]: Abstraction has 918 states and 1062 transitions. [2021-10-28 09:51:47,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states and 1062 transitions. [2021-10-28 09:51:47,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 829. [2021-10-28 09:51:47,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 829 states have (on average 1.1700844390832328) internal successors, (970), 828 states have internal predecessors, (970), 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) [2021-10-28 09:51:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 970 transitions. [2021-10-28 09:51:47,498 INFO L704 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-28 09:51:47,498 INFO L587 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-28 09:51:47,499 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-28 09:51:47,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 829 states and 970 transitions. [2021-10-28 09:51:47,504 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 802 [2021-10-28 09:51:47,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:47,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:47,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:47,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:47,506 INFO L791 eck$LassoCheckResult]: Stem: 18266#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 18254#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 18244#L51 assume !(0 == mp_add_~a3~0 % 256); 18245#L51-1 mp_add_~nb~0 := 4; 18246#L61 assume !(0 == mp_add_~b3~0 % 256); 18247#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 18262#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18593#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18591#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18588#L76-2 assume !(1 == mp_add_~i~0 % 256); 18554#L77-1 assume !(2 == mp_add_~i~0 % 256); 18555#L78-1 assume !(3 == mp_add_~i~0 % 256); 18542#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18543#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18516#L82-2 assume !(1 == mp_add_~i~0 % 256); 18517#L83-1 assume !(2 == mp_add_~i~0 % 256); 18503#L84-1 assume !(3 == mp_add_~i~0 % 256); 18504#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18481#L87-1 [2021-10-28 09:51:47,506 INFO L793 eck$LassoCheckResult]: Loop: 18481#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 18479#L91-1 assume !(1 == mp_add_~i~0 % 256); 18477#L92-1 assume !(2 == mp_add_~i~0 % 256); 18475#L93-1 assume !(3 == mp_add_~i~0 % 256); 18473#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18471#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18467#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18464#L76 assume !(0 == mp_add_~i~0 % 256); 18461#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 18459#L77-1 assume !(2 == mp_add_~i~0 % 256); 18455#L78-1 assume !(3 == mp_add_~i~0 % 256); 18448#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18444#L82 assume !(0 == mp_add_~i~0 % 256); 18440#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 18437#L83-1 assume !(2 == mp_add_~i~0 % 256); 18434#L84-1 assume !(3 == mp_add_~i~0 % 256); 18431#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18428#L87-1 assume !(0 == mp_add_~i~0 % 256); 18424#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 18421#L92-1 assume !(2 == mp_add_~i~0 % 256); 18417#L93-1 assume !(3 == mp_add_~i~0 % 256); 18414#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18411#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18407#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18405#L76 assume !(0 == mp_add_~i~0 % 256); 18401#L76-2 assume !(1 == mp_add_~i~0 % 256); 18399#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 18396#L78-1 assume !(3 == mp_add_~i~0 % 256); 18392#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18388#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18386#L87-1 assume !(0 == mp_add_~i~0 % 256); 18383#L91-1 assume !(1 == mp_add_~i~0 % 256); 18375#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 18372#L93-1 assume !(3 == mp_add_~i~0 % 256); 18368#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18364#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18358#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18353#L76 assume !(0 == mp_add_~i~0 % 256); 18348#L76-2 assume !(1 == mp_add_~i~0 % 256); 18343#L77-1 assume !(2 == mp_add_~i~0 % 256); 18338#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 18334#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18329#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18323#L87-1 assume !(0 == mp_add_~i~0 % 256); 18324#L91-1 assume !(1 == mp_add_~i~0 % 256); 18319#L92-1 assume !(2 == mp_add_~i~0 % 256); 18320#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 18315#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18316#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18309#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18310#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18599#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 18598#L87-1 assume !(0 == mp_add_~i~0 % 256); 18597#L91-1 assume !(1 == mp_add_~i~0 % 256); 18596#L92-1 assume !(2 == mp_add_~i~0 % 256); 18595#L93-1 assume !(3 == mp_add_~i~0 % 256); 18370#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18366#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18361#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18355#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18356#L76-2 assume !(1 == mp_add_~i~0 % 256); 18558#L77-1 assume !(2 == mp_add_~i~0 % 256); 18549#L78-1 assume !(3 == mp_add_~i~0 % 256); 18550#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18535#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18536#L82-2 assume !(1 == mp_add_~i~0 % 256); 18510#L83-1 assume !(2 == mp_add_~i~0 % 256); 18511#L84-1 assume !(3 == mp_add_~i~0 % 256); 18484#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18481#L87-1 [2021-10-28 09:51:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:47,507 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 15 times [2021-10-28 09:51:47,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:47,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624507753] [2021-10-28 09:51:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:47,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,524 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:47,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:47,542 INFO L85 PathProgramCache]: Analyzing trace with hash -382324270, now seen corresponding path program 1 times [2021-10-28 09:51:47,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:47,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867404825] [2021-10-28 09:51:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:47,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:51:47,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:47,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867404825] [2021-10-28 09:51:47,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867404825] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:51:47,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071930203] [2021-10-28 09:51:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:47,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:51:47,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:47,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:51:47,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 09:51:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:47,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:51:47,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:52:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-28 09:52:13,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071930203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:52:13,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:52:13,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-10-28 09:52:13,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754437672] [2021-10-28 09:52:13,151 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:52:13,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:52:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:52:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=69, Unknown=2, NotChecked=0, Total=90 [2021-10-28 09:52:13,153 INFO L87 Difference]: Start difference. First operand 829 states and 970 transitions. cyclomatic complexity: 148 Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 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) [2021-10-28 09:54:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:05,487 INFO L93 Difference]: Finished difference Result 1188 states and 1357 transitions. [2021-10-28 09:54:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:54:05,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1188 states and 1357 transitions. [2021-10-28 09:54:05,498 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1147 [2021-10-28 09:54:05,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1188 states to 1174 states and 1333 transitions. [2021-10-28 09:54:05,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1174 [2021-10-28 09:54:05,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1174 [2021-10-28 09:54:05,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1174 states and 1333 transitions. [2021-10-28 09:54:05,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:05,513 INFO L681 BuchiCegarLoop]: Abstraction has 1174 states and 1333 transitions. [2021-10-28 09:54:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states and 1333 transitions. [2021-10-28 09:54:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1001. [2021-10-28 09:54:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 1001 states have (on average 1.1468531468531469) internal successors, (1148), 1000 states have internal predecessors, (1148), 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) [2021-10-28 09:54:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1148 transitions. [2021-10-28 09:54:05,545 INFO L704 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-28 09:54:05,545 INFO L587 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-28 09:54:05,545 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-28 09:54:05,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1001 states and 1148 transitions. [2021-10-28 09:54:05,551 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 974 [2021-10-28 09:54:05,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:05,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:05,553 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:05,553 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:05,553 INFO L791 eck$LassoCheckResult]: Stem: 20496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 20487#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 20478#L51 assume !(0 == mp_add_~a3~0 % 256); 20479#L51-1 mp_add_~nb~0 := 4; 20480#L61 assume !(0 == mp_add_~b3~0 % 256); 20481#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 20494#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20860#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20857#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 20858#L76-2 assume !(1 == mp_add_~i~0 % 256); 20852#L77-1 assume !(2 == mp_add_~i~0 % 256); 20853#L78-1 assume !(3 == mp_add_~i~0 % 256); 20847#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20845#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 20843#L82-2 assume !(1 == mp_add_~i~0 % 256); 20842#L83-1 assume !(2 == mp_add_~i~0 % 256); 20840#L84-1 assume !(3 == mp_add_~i~0 % 256); 20828#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20826#L87-1 [2021-10-28 09:54:05,553 INFO L793 eck$LassoCheckResult]: Loop: 20826#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 20824#L91-1 assume !(1 == mp_add_~i~0 % 256); 20822#L92-1 assume !(2 == mp_add_~i~0 % 256); 20820#L93-1 assume !(3 == mp_add_~i~0 % 256); 20815#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20816#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20808#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20809#L76 assume !(0 == mp_add_~i~0 % 256); 20798#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 20799#L77-1 assume !(2 == mp_add_~i~0 % 256); 20789#L78-1 assume !(3 == mp_add_~i~0 % 256); 20790#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20814#L82 assume !(0 == mp_add_~i~0 % 256); 20811#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 20807#L83-1 assume !(2 == mp_add_~i~0 % 256); 20800#L84-1 assume !(3 == mp_add_~i~0 % 256); 20795#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20791#L87-1 assume !(0 == mp_add_~i~0 % 256); 20787#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 20785#L92-1 assume !(2 == mp_add_~i~0 % 256); 20782#L93-1 assume !(3 == mp_add_~i~0 % 256); 20778#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20776#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20763#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20760#L76 assume !(0 == mp_add_~i~0 % 256); 20757#L76-2 assume !(1 == mp_add_~i~0 % 256); 20751#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 20749#L78-1 assume !(3 == mp_add_~i~0 % 256); 20746#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20744#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20742#L87-1 assume !(0 == mp_add_~i~0 % 256); 20740#L91-1 assume !(1 == mp_add_~i~0 % 256); 20737#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 20734#L93-1 assume !(3 == mp_add_~i~0 % 256); 20733#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20731#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20729#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20727#L76 assume !(0 == mp_add_~i~0 % 256); 20725#L76-2 assume !(1 == mp_add_~i~0 % 256); 20724#L77-1 assume !(2 == mp_add_~i~0 % 256); 20722#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 20644#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20640#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20638#L87-1 assume !(0 == mp_add_~i~0 % 256); 20636#L91-1 assume !(1 == mp_add_~i~0 % 256); 20634#L92-1 assume !(2 == mp_add_~i~0 % 256); 20632#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 20612#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20608#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20603#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 20587#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20584#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20582#L87-1 assume !(0 == mp_add_~i~0 % 256); 20580#L91-1 assume !(1 == mp_add_~i~0 % 256); 20578#L92-1 assume !(2 == mp_add_~i~0 % 256); 20576#L93-1 assume !(3 == mp_add_~i~0 % 256); 20574#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20572#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20569#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20567#L76 assume !(0 == mp_add_~i~0 % 256); 20565#L76-2 assume !(1 == mp_add_~i~0 % 256); 20563#L77-1 assume !(2 == mp_add_~i~0 % 256); 20561#L78-1 assume !(3 == mp_add_~i~0 % 256); 20559#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20552#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20550#L87-1 assume !(0 == mp_add_~i~0 % 256); 20551#L91-1 assume !(1 == mp_add_~i~0 % 256); 20546#L92-1 assume !(2 == mp_add_~i~0 % 256); 20547#L93-1 assume !(3 == mp_add_~i~0 % 256); 20540#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20541#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20534#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20533#L76 assume !(0 == mp_add_~i~0 % 256); 20531#L76-2 assume !(1 == mp_add_~i~0 % 256); 20532#L77-1 assume !(2 == mp_add_~i~0 % 256); 20771#L78-1 assume !(3 == mp_add_~i~0 % 256); 20768#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20762#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20759#L87-1 assume !(0 == mp_add_~i~0 % 256); 20756#L91-1 assume !(1 == mp_add_~i~0 % 256); 20755#L92-1 assume !(2 == mp_add_~i~0 % 256); 20754#L93-1 assume !(3 == mp_add_~i~0 % 256); 20542#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20543#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20689#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20683#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 20684#L76-2 assume !(1 == mp_add_~i~0 % 256); 20855#L77-1 assume !(2 == mp_add_~i~0 % 256); 20849#L78-1 assume !(3 == mp_add_~i~0 % 256); 20850#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20879#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 21474#L82-2 assume !(1 == mp_add_~i~0 % 256); 21473#L83-1 assume !(2 == mp_add_~i~0 % 256); 21472#L84-1 assume !(3 == mp_add_~i~0 % 256); 21471#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20826#L87-1 [2021-10-28 09:54:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 16 times [2021-10-28 09:54:05,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:05,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979657384] [2021-10-28 09:54:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:05,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:05,571 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:05,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:05,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:05,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1186296946, now seen corresponding path program 2 times [2021-10-28 09:54:05,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:05,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542141070] [2021-10-28 09:54:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:05,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 192 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-28 09:54:05,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:05,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542141070] [2021-10-28 09:54:05,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542141070] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:05,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340290939] [2021-10-28 09:54:05,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:54:05,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:05,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:05,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:05,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 09:54:06,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:54:06,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:54:06,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:54:06,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 103 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-10-28 09:54:07,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340290939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:07,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:07,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-28 09:54:07,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792180278] [2021-10-28 09:54:07,511 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:54:07,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:07,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:54:07,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:54:07,512 INFO L87 Difference]: Start difference. First operand 1001 states and 1148 transitions. cyclomatic complexity: 154 Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 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) [2021-10-28 09:54:10,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:10,508 INFO L93 Difference]: Finished difference Result 755 states and 807 transitions. [2021-10-28 09:54:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:54:10,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 755 states and 807 transitions. [2021-10-28 09:54:10,513 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 112 [2021-10-28 09:54:10,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 755 states to 744 states and 791 transitions. [2021-10-28 09:54:10,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 744 [2021-10-28 09:54:10,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 744 [2021-10-28 09:54:10,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 744 states and 791 transitions. [2021-10-28 09:54:10,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:10,522 INFO L681 BuchiCegarLoop]: Abstraction has 744 states and 791 transitions. [2021-10-28 09:54:10,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states and 791 transitions. [2021-10-28 09:54:10,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 311. [2021-10-28 09:54:10,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.1028938906752412) internal successors, (343), 310 states have internal predecessors, (343), 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) [2021-10-28 09:54:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2021-10-28 09:54:10,533 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-28 09:54:10,533 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-28 09:54:10,533 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-28 09:54:10,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 343 transitions. [2021-10-28 09:54:10,535 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 60 [2021-10-28 09:54:10,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:10,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:10,536 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:10,536 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:10,537 INFO L791 eck$LassoCheckResult]: Stem: 22597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 22591#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 22585#L51 assume !(0 == mp_add_~a3~0 % 256); 22586#L51-1 mp_add_~nb~0 := 4; 22587#L61 assume !(0 == mp_add_~b3~0 % 256); 22588#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 22596#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22658#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 22657#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 22656#L76-2 assume !(1 == mp_add_~i~0 % 256); 22655#L77-1 assume !(2 == mp_add_~i~0 % 256); 22654#L78-1 assume !(3 == mp_add_~i~0 % 256); 22653#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22652#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 22651#L82-2 assume !(1 == mp_add_~i~0 % 256); 22650#L83-1 assume !(2 == mp_add_~i~0 % 256); 22649#L84-1 assume !(3 == mp_add_~i~0 % 256); 22647#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22648#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 22674#L91-1 assume !(1 == mp_add_~i~0 % 256); 22673#L92-1 assume !(2 == mp_add_~i~0 % 256); 22672#L93-1 assume !(3 == mp_add_~i~0 % 256); 22671#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22670#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22668#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22669#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22865#L82 assume !(0 == mp_add_~i~0 % 256); 22864#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 22863#L83-1 assume !(2 == mp_add_~i~0 % 256); 22862#L84-1 assume !(3 == mp_add_~i~0 % 256); 22860#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22859#L87-1 assume !(0 == mp_add_~i~0 % 256); 22858#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 22857#L92-1 assume !(2 == mp_add_~i~0 % 256); 22856#L93-1 assume !(3 == mp_add_~i~0 % 256); 22855#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22854#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22853#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22773#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22851#L82 assume !(0 == mp_add_~i~0 % 256); 22850#L82-2 assume !(1 == mp_add_~i~0 % 256); 22849#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 22848#L84-1 assume !(3 == mp_add_~i~0 % 256); 22846#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22845#L87-1 assume !(0 == mp_add_~i~0 % 256); 22844#L91-1 assume !(1 == mp_add_~i~0 % 256); 22843#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 22842#L93-1 assume !(3 == mp_add_~i~0 % 256); 22841#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22840#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22839#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22718#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 22834#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 22831#L87-1 assume !(0 == mp_add_~i~0 % 256); 22830#L91-1 assume !(1 == mp_add_~i~0 % 256); 22829#L92-1 assume !(2 == mp_add_~i~0 % 256); 22828#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 22595#L94-1 [2021-10-28 09:54:10,537 INFO L793 eck$LassoCheckResult]: Loop: 22595#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22592#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22593#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22608#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22604#L82 assume !(0 == mp_add_~i~0 % 256); 22605#L82-2 assume !(1 == mp_add_~i~0 % 256); 22607#L83-1 assume !(2 == mp_add_~i~0 % 256); 22606#L84-1 assume !(3 == mp_add_~i~0 % 256); 22601#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 22594#L87-1 assume !(0 == mp_add_~i~0 % 256); 22582#L91-1 assume !(1 == mp_add_~i~0 % 256); 22583#L92-1 assume !(2 == mp_add_~i~0 % 256); 22584#L93-1 assume !(3 == mp_add_~i~0 % 256); 22595#L94-1 [2021-10-28 09:54:10,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:10,537 INFO L85 PathProgramCache]: Analyzing trace with hash -529922365, now seen corresponding path program 1 times [2021-10-28 09:54:10,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:10,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794249271] [2021-10-28 09:54:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:10,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-28 09:54:10,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:10,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794249271] [2021-10-28 09:54:10,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794249271] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:10,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984301611] [2021-10-28 09:54:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:10,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:10,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:10,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:10,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:54:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:11,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:54:11,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 09:54:11,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984301611] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:11,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:11,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-28 09:54:11,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399120267] [2021-10-28 09:54:11,366 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:11,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:11,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-28 09:54:11,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:11,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573341446] [2021-10-28 09:54:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:11,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:11,374 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:11,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:11,686 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:11,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:11,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:11,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:11,688 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:11,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:11,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:11,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:11,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-28 09:54:11,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:11,689 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:11,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:11,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:12,188 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:12,189 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:12,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:12,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:12,197 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:12,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:12,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:12,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:54:12,236 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:54:12,237 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:54:12,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:12,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:12,286 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:12,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:12,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:12,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:54:12,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:12,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:12,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:12,441 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:12,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:54:12,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:12,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:13,249 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:13,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:13,258 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:13,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:13,259 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:13,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:13,259 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:13,259 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:13,259 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:13,259 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:13,259 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-28 09:54:13,259 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:13,259 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:13,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:13,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:13,750 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:13,754 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:13,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:13,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:13,756 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:13,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:54:13,759 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 [2021-10-28 09:54:13,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:13,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:13,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:13,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:13,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:13,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:13,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:13,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:13,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-28 09:54:13,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:13,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:13,807 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:13,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:54:13,809 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 [2021-10-28 09:54:13,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:13,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:13,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:13,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:13,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:13,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:13,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:13,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:13,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-28 09:54:13,864 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:13,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:13,870 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:13,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:54:13,877 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 [2021-10-28 09:54:13,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:13,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:13,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:13,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:13,886 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:13,889 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:13,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:13,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:13,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:13,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:13,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:13,920 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:13,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:54:13,926 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 [2021-10-28 09:54:13,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:13,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:13,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:13,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:13,934 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:13,939 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:13,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:13,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:13,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 09:54:13,974 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:13,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:13,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:13,975 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:13,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:54:13,979 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 [2021-10-28 09:54:13,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:13,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:13,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:13,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:13,987 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:13,991 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:13,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:13,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,018 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:54:14,025 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 [2021-10-28 09:54:14,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:14,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,034 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:14,043 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:14,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,110 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:14,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,111 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:54:14,130 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 [2021-10-28 09:54:14,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:14,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,142 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:14,145 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:14,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,213 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,220 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 [2021-10-28 09:54:14,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:14,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,231 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:14,240 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:14,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:54:14,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,299 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:14,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,301 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,308 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 [2021-10-28 09:54:14,318 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,318 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:14,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,319 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:14,322 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:14,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:54:14,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,379 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,390 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 [2021-10-28 09:54:14,400 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,400 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:14,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,400 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:14,407 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:14,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:54:14,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,465 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:14,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,466 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,473 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 [2021-10-28 09:54:14,482 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,482 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:14,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,483 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:14,488 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:14,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:54:14,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,551 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,563 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 [2021-10-28 09:54:14,573 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,573 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:14,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,574 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:14,583 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:14,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:54:14,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,650 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:14,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,651 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,653 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 [2021-10-28 09:54:14,663 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,663 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:14,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:54:14,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,664 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:14,675 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:14,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,746 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,750 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 [2021-10-28 09:54:14,762 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,762 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:14,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,763 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:14,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:54:14,778 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:14,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,859 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:14,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,860 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,865 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 [2021-10-28 09:54:14,877 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,877 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:14,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,878 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:14,881 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:14,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:54:14,888 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:14,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:14,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:14,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:14,913 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:14,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:54:14,915 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 [2021-10-28 09:54:14,925 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:14,925 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:14,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:14,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:14,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:14,925 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:14,931 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:14,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:14,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:15,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:15,005 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:15,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:15,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:15,007 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:15,014 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 [2021-10-28 09:54:15,025 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:15,026 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:15,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:15,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:15,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:15,026 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:15,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:15,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:15,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:54:15,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:15,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:15,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:15,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:15,114 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:15,118 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 [2021-10-28 09:54:15,129 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:15,129 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:15,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:15,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:15,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:15,130 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:15,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:15,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:15,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:54:15,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:15,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:15,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:15,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:54:15,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:54:15,206 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. cyclomatic complexity: 36 Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2021-10-28 09:54:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:15,819 INFO L93 Difference]: Finished difference Result 445 states and 473 transitions. [2021-10-28 09:54:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:54:15,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 473 transitions. [2021-10-28 09:54:15,829 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 94 [2021-10-28 09:54:15,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 390 states and 417 transitions. [2021-10-28 09:54:15,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2021-10-28 09:54:15,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2021-10-28 09:54:15,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 417 transitions. [2021-10-28 09:54:15,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:15,835 INFO L681 BuchiCegarLoop]: Abstraction has 390 states and 417 transitions. [2021-10-28 09:54:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 417 transitions. [2021-10-28 09:54:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 327. [2021-10-28 09:54:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 327 states have (on average 1.0825688073394495) internal successors, (354), 326 states have internal predecessors, (354), 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) [2021-10-28 09:54:15,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 354 transitions. [2021-10-28 09:54:15,846 INFO L704 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-28 09:54:15,846 INFO L587 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-28 09:54:15,846 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-28 09:54:15,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states and 354 transitions. [2021-10-28 09:54:15,848 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-28 09:54:15,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:15,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:15,849 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 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] [2021-10-28 09:54:15,849 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:15,849 INFO L791 eck$LassoCheckResult]: Stem: 23544#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 23535#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 23525#L51 assume !(0 == mp_add_~a3~0 % 256); 23526#L51-1 mp_add_~nb~0 := 4; 23527#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 23529#L63 assume !(0 == mp_add_~b2~0 % 256); 23530#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 23541#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23624#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23625#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 23620#L76-2 assume !(1 == mp_add_~i~0 % 256); 23621#L77-1 assume !(2 == mp_add_~i~0 % 256); 23616#L78-1 assume !(3 == mp_add_~i~0 % 256); 23617#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 23612#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 23613#L82-2 assume !(1 == mp_add_~i~0 % 256); 23608#L83-1 assume !(2 == mp_add_~i~0 % 256); 23609#L84-1 assume !(3 == mp_add_~i~0 % 256); 23604#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23605#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 23851#L91-1 assume !(1 == mp_add_~i~0 % 256); 23850#L92-1 assume !(2 == mp_add_~i~0 % 256); 23849#L93-1 assume !(3 == mp_add_~i~0 % 256); 23848#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23847#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23846#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23845#L76 assume !(0 == mp_add_~i~0 % 256); 23844#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 23843#L77-1 assume !(2 == mp_add_~i~0 % 256); 23842#L78-1 assume !(3 == mp_add_~i~0 % 256); 23840#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23839#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23838#L87-1 assume !(0 == mp_add_~i~0 % 256); 23836#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 23835#L92-1 assume !(2 == mp_add_~i~0 % 256); 23834#L93-1 assume !(3 == mp_add_~i~0 % 256); 23832#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23831#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23555#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23556#L76 assume !(0 == mp_add_~i~0 % 256); 23560#L76-2 assume !(1 == mp_add_~i~0 % 256); 23825#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 23824#L78-1 assume !(3 == mp_add_~i~0 % 256); 23822#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23820#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23818#L87-1 assume !(0 == mp_add_~i~0 % 256); 23816#L91-1 assume !(1 == mp_add_~i~0 % 256); 23814#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 23812#L93-1 assume !(3 == mp_add_~i~0 % 256); 23810#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23808#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23806#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23804#L76 assume !(0 == mp_add_~i~0 % 256); 23802#L76-2 assume !(1 == mp_add_~i~0 % 256); 23800#L77-1 assume !(2 == mp_add_~i~0 % 256); 23798#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 23796#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23794#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 23793#L87-1 assume !(0 == mp_add_~i~0 % 256); 23792#L91-1 assume !(1 == mp_add_~i~0 % 256); 23791#L92-1 assume !(2 == mp_add_~i~0 % 256); 23790#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 23540#L94-1 [2021-10-28 09:54:15,849 INFO L793 eck$LassoCheckResult]: Loop: 23540#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23536#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23537#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23828#L76 assume !(0 == mp_add_~i~0 % 256); 23827#L76-2 assume !(1 == mp_add_~i~0 % 256); 23826#L77-1 assume !(2 == mp_add_~i~0 % 256); 23549#L78-1 assume !(3 == mp_add_~i~0 % 256); 23550#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23559#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 23841#L87-1 assume !(0 == mp_add_~i~0 % 256); 23532#L91-1 assume !(1 == mp_add_~i~0 % 256); 23533#L92-1 assume !(2 == mp_add_~i~0 % 256); 23534#L93-1 assume !(3 == mp_add_~i~0 % 256); 23540#L94-1 [2021-10-28 09:54:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash -267040966, now seen corresponding path program 1 times [2021-10-28 09:54:15,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:15,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674848178] [2021-10-28 09:54:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:15,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 09:54:16,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:16,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674848178] [2021-10-28 09:54:16,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674848178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:16,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939383569] [2021-10-28 09:54:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:16,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:16,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:16,094 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:16,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 09:54:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:16,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 09:54:16,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:54:17,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939383569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:17,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:17,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-28 09:54:17,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900840940] [2021-10-28 09:54:17,204 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-28 09:54:17,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:17,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013624793] [2021-10-28 09:54:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:17,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:17,247 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:17,253 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:17,550 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:17,550 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:17,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:17,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:17,550 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:17,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:17,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:17,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:17,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-28 09:54:17,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:17,551 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:17,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:17,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:17,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:17,973 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:17,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:17,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:17,975 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:17,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:54:17,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:17,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:17,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:54:17,996 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:54:18,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:18,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:18,022 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:18,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:54:18,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:18,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:18,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 09:54:18,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:18,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:18,085 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:18,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:54:18,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:18,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:20,401 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:20,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 09:54:20,405 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:20,405 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:20,405 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:20,405 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:20,406 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:20,406 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:20,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:20,406 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:20,406 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-28 09:54:20,406 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:20,406 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:20,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:20,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:20,842 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:20,842 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:20,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:20,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:20,845 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:20,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:54:20,846 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 [2021-10-28 09:54:20,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:20,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:20,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:20,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:20,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:20,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:20,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:20,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:20,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 09:54:20,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:20,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:20,883 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:20,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:54:20,884 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 [2021-10-28 09:54:20,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:20,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:20,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:20,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:20,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:20,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:20,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:20,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:20,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 09:54:20,920 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:20,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:20,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:20,922 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:20,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:54:20,923 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 [2021-10-28 09:54:20,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:20,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:20,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:20,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:20,931 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:20,933 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:20,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:20,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:20,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 09:54:20,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:20,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:20,957 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:20,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:54:20,961 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 [2021-10-28 09:54:20,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:20,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:20,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:20,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:20,969 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:20,972 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:20,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:20,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:20,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 09:54:20,999 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:20,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:20,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,000 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:54:21,002 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 [2021-10-28 09:54:21,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:21,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,012 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:21,017 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:21,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,049 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:54:21,057 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 [2021-10-28 09:54:21,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:21,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,071 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:21,076 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:21,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,113 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:21,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,114 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:54:21,115 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 [2021-10-28 09:54:21,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:21,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,125 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:21,128 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:21,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 09:54:21,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,169 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:54:21,172 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 [2021-10-28 09:54:21,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:21,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,182 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:21,200 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:21,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 09:54:21,236 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:21,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,240 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:54:21,247 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 [2021-10-28 09:54:21,256 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,256 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:21,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,257 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:21,259 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:21,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 09:54:21,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,290 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:54:21,292 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 [2021-10-28 09:54:21,300 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,300 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:21,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,301 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:21,305 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:21,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 09:54:21,345 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:21,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,346 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:54:21,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:21,357 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,357 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:21,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,357 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:21,361 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:21,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,391 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:54:21,393 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 [2021-10-28 09:54:21,401 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,401 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:21,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,402 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:21,406 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:21,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 09:54:21,441 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:21,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,442 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,444 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 [2021-10-28 09:54:21,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:54:21,454 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,455 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:21,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,455 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:21,459 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:21,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,522 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:54:21,524 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 [2021-10-28 09:54:21,532 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,532 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:21,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,533 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:21,541 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:21,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,622 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:21,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,623 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,630 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 [2021-10-28 09:54:21,640 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,640 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:21,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,640 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:21,643 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:21,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:54:21,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,703 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,705 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 [2021-10-28 09:54:21,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:54:21,714 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,714 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:21,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,714 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:21,720 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:21,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,754 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:21,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,755 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:54:21,756 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 [2021-10-28 09:54:21,765 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,765 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:21,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,765 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:21,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:21,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 09:54:21,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:21,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:21,798 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:21,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:54:21,799 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 [2021-10-28 09:54:21,807 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:21,807 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:21,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:21,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:21,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:21,808 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:21,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:21,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:21,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:21,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:21,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:21,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:54:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:54:21,876 INFO L87 Difference]: Start difference. First operand 327 states and 354 transitions. cyclomatic complexity: 32 Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:24,210 INFO L93 Difference]: Finished difference Result 587 states and 628 transitions. [2021-10-28 09:54:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:54:24,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 628 transitions. [2021-10-28 09:54:24,215 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-10-28 09:54:24,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 587 states and 628 transitions. [2021-10-28 09:54:24,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2021-10-28 09:54:24,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2021-10-28 09:54:24,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 628 transitions. [2021-10-28 09:54:24,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:24,222 INFO L681 BuchiCegarLoop]: Abstraction has 587 states and 628 transitions. [2021-10-28 09:54:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 628 transitions. [2021-10-28 09:54:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 313. [2021-10-28 09:54:24,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.0766773162939298) internal successors, (337), 312 states have internal predecessors, (337), 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) [2021-10-28 09:54:24,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 337 transitions. [2021-10-28 09:54:24,233 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-28 09:54:24,233 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-28 09:54:24,233 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-28 09:54:24,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 337 transitions. [2021-10-28 09:54:24,235 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-28 09:54:24,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:24,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:24,236 INFO L842 BuchiCegarLoop]: 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] [2021-10-28 09:54:24,236 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:24,236 INFO L791 eck$LassoCheckResult]: Stem: 24692#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 24686#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 24677#L51 assume !(0 == mp_add_~a3~0 % 256); 24678#L51-1 mp_add_~nb~0 := 4; 24679#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24681#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24683#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24707#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 24824#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24823#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24822#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 24821#L76-2 assume !(1 == mp_add_~i~0 % 256); 24820#L77-1 assume !(2 == mp_add_~i~0 % 256); 24819#L78-1 assume !(3 == mp_add_~i~0 % 256); 24818#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24817#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 24816#L82-2 assume !(1 == mp_add_~i~0 % 256); 24815#L83-1 assume !(2 == mp_add_~i~0 % 256); 24814#L84-1 assume !(3 == mp_add_~i~0 % 256); 24813#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24812#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 24811#L91-1 assume !(1 == mp_add_~i~0 % 256); 24810#L92-1 assume !(2 == mp_add_~i~0 % 256); 24809#L93-1 assume !(3 == mp_add_~i~0 % 256); 24808#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24807#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24806#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24805#L76 assume !(0 == mp_add_~i~0 % 256); 24804#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 24803#L77-1 assume !(2 == mp_add_~i~0 % 256); 24802#L78-1 assume !(3 == mp_add_~i~0 % 256); 24801#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24800#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24799#L87-1 assume !(0 == mp_add_~i~0 % 256); 24798#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 24797#L92-1 assume !(2 == mp_add_~i~0 % 256); 24796#L93-1 assume !(3 == mp_add_~i~0 % 256); 24795#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24794#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24793#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24792#L76 assume !(0 == mp_add_~i~0 % 256); 24791#L76-2 assume !(1 == mp_add_~i~0 % 256); 24789#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 24790#L78-1 assume !(3 == mp_add_~i~0 % 256); 24839#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24838#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24837#L87-1 assume !(0 == mp_add_~i~0 % 256); 24836#L91-1 assume !(1 == mp_add_~i~0 % 256); 24835#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 24834#L93-1 assume !(3 == mp_add_~i~0 % 256); 24833#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24832#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24831#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24830#L76 assume !(0 == mp_add_~i~0 % 256); 24829#L76-2 assume !(1 == mp_add_~i~0 % 256); 24828#L77-1 assume !(2 == mp_add_~i~0 % 256); 24825#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 24826#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24854#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24852#L87-1 assume !(0 == mp_add_~i~0 % 256); 24850#L91-1 assume !(1 == mp_add_~i~0 % 256); 24848#L92-1 assume !(2 == mp_add_~i~0 % 256); 24846#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 24845#L94-1 [2021-10-28 09:54:24,237 INFO L793 eck$LassoCheckResult]: Loop: 24845#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24844#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24843#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24842#L76 assume !(0 == mp_add_~i~0 % 256); 24841#L76-2 assume !(1 == mp_add_~i~0 % 256); 24840#L77-1 assume !(2 == mp_add_~i~0 % 256); 24827#L78-1 assume !(3 == mp_add_~i~0 % 256); 24704#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24705#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24853#L87-1 assume !(0 == mp_add_~i~0 % 256); 24851#L91-1 assume !(1 == mp_add_~i~0 % 256); 24849#L92-1 assume !(2 == mp_add_~i~0 % 256); 24847#L93-1 assume !(3 == mp_add_~i~0 % 256); 24845#L94-1 [2021-10-28 09:54:24,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-10-28 09:54:24,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:24,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119057005] [2021-10-28 09:54:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:24,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:24,269 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:24,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:24,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:24,307 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-28 09:54:24,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:24,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56021134] [2021-10-28 09:54:24,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:24,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:24,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:24,319 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:24,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:24,320 INFO L85 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-10-28 09:54:24,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:24,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584561707] [2021-10-28 09:54:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:24,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:24,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:24,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584561707] [2021-10-28 09:54:24,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584561707] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:24,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493026919] [2021-10-28 09:54:24,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:54:24,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:24,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:24,626 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:24,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 09:54:25,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:54:25,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:54:25,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:54:25,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-28 09:54:26,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493026919] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:26,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:26,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-28 09:54:26,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769786186] [2021-10-28 09:54:26,531 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:26,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:26,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:26,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:26,532 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:26,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:26,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:26,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:26,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-28 09:54:26,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:26,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:26,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:26,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:27,090 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:27,091 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:27,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:27,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:27,094 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:27,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:54:27,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:27,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:27,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:27,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:27,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:27,157 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:27,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:54:27,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:27,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:28,034 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:28,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,037 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:28,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:28,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:28,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:28,038 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:28,038 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,038 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:28,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:28,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-28 09:54:28,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:28,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:28,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:28,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:28,410 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:28,410 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:28,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,411 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:54:28,413 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 [2021-10-28 09:54:28,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:28,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:28,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,490 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,497 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 [2021-10-28 09:54:28,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:28,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:28,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:54:28,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,556 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:28,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,557 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,559 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 [2021-10-28 09:54:28,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,570 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:28,573 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:28,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 09:54:28,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,614 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 09:54:28,616 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 [2021-10-28 09:54:28,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,624 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:28,626 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:28,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 09:54:28,650 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:28,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,651 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 09:54:28,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:28,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,663 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:28,667 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:28,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,715 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 09:54:28,722 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 [2021-10-28 09:54:28,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,730 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:28,732 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:28,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,756 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:28,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,757 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 09:54:28,759 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 [2021-10-28 09:54:28,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,767 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:28,772 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:28,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 09:54:28,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,801 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 09:54:28,802 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 [2021-10-28 09:54:28,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:28,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,811 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:28,813 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:28,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 09:54:28,838 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:28,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,839 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 09:54:28,840 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 [2021-10-28 09:54:28,848 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:28,848 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:28,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,848 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:28,853 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:28,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,920 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,926 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 [2021-10-28 09:54:28,935 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:28,935 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:28,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:28,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:28,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:28,935 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:28,938 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:28,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:28,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 09:54:28,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:28,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:28,989 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:28,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:28,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:28,990 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:28,994 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 [2021-10-28 09:54:29,004 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,004 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:29,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,005 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:29,010 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:29,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 09:54:29,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:29,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,066 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,068 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 [2021-10-28 09:54:29,077 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,077 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:29,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,078 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:29,081 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:29,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 09:54:29,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:29,133 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:29,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,135 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,137 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 [2021-10-28 09:54:29,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 09:54:29,147 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,147 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:29,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,148 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:29,155 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:29,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:29,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,222 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,230 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 [2021-10-28 09:54:29,241 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,241 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:29,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,242 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:29,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 09:54:29,245 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:29,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-28 09:54:29,278 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:29,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,279 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 09:54:29,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:29,288 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,288 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:29,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,289 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:29,293 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:29,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:29,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,337 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 09:54:29,339 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 [2021-10-28 09:54:29,347 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,347 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:29,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,347 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:29,349 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:29,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:29,375 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:29,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,376 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 09:54:29,378 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 [2021-10-28 09:54:29,387 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,387 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:29,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,387 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:29,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:29,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-28 09:54:29,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:29,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:29,432 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:29,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 09:54:29,433 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 [2021-10-28 09:54:29,441 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:29,441 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:29,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:29,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:29,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:29,442 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:29,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:29,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:29,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:29,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-28 09:54:29,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:29,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:54:29,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:54:29,475 INFO L87 Difference]: Start difference. First operand 313 states and 337 transitions. cyclomatic complexity: 29 Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:31,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:31,251 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2021-10-28 09:54:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:54:31,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 298 transitions. [2021-10-28 09:54:31,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:31,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 177 states and 189 transitions. [2021-10-28 09:54:31,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-28 09:54:31,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-28 09:54:31,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 189 transitions. [2021-10-28 09:54:31,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:31,257 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 189 transitions. [2021-10-28 09:54:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 189 transitions. [2021-10-28 09:54:31,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 122. [2021-10-28 09:54:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.0901639344262295) internal successors, (133), 121 states have internal predecessors, (133), 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) [2021-10-28 09:54:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-28 09:54:31,260 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-28 09:54:31,260 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-28 09:54:31,261 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-28 09:54:31,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 133 transitions. [2021-10-28 09:54:31,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:31,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:31,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:31,262 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:31,262 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:31,263 INFO L791 eck$LassoCheckResult]: Stem: 25545#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 25541#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 25533#L51 assume !(0 == mp_add_~a3~0 % 256); 25534#L51-1 mp_add_~nb~0 := 4; 25535#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 25536#L63 assume !(0 == mp_add_~b2~0 % 256); 25537#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 25544#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25607#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25606#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 25603#L76-2 assume !(1 == mp_add_~i~0 % 256); 25600#L77-1 assume !(2 == mp_add_~i~0 % 256); 25599#L78-1 assume !(3 == mp_add_~i~0 % 256); 25598#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25597#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 25596#L82-2 assume !(1 == mp_add_~i~0 % 256); 25595#L83-1 assume !(2 == mp_add_~i~0 % 256); 25594#L84-1 assume !(3 == mp_add_~i~0 % 256); 25593#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25592#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 25591#L91-1 assume !(1 == mp_add_~i~0 % 256); 25590#L92-1 assume !(2 == mp_add_~i~0 % 256); 25589#L93-1 assume !(3 == mp_add_~i~0 % 256); 25588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25587#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25586#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25585#L76 assume !(0 == mp_add_~i~0 % 256); 25584#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 25583#L77-1 assume !(2 == mp_add_~i~0 % 256); 25582#L78-1 assume !(3 == mp_add_~i~0 % 256); 25581#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25580#L82 assume !(0 == mp_add_~i~0 % 256); 25579#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 25578#L83-1 assume !(2 == mp_add_~i~0 % 256); 25577#L84-1 assume !(3 == mp_add_~i~0 % 256); 25575#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 25576#L87-1 assume !(0 == mp_add_~i~0 % 256); 25630#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 25629#L92-1 assume !(2 == mp_add_~i~0 % 256); 25628#L93-1 assume !(3 == mp_add_~i~0 % 256); 25627#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25626#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25625#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25624#L76 assume !(0 == mp_add_~i~0 % 256); 25623#L76-2 assume !(1 == mp_add_~i~0 % 256); 25622#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 25621#L78-1 assume !(3 == mp_add_~i~0 % 256); 25620#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25618#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 25619#L87-1 assume !(0 == mp_add_~i~0 % 256); 25614#L91-1 assume !(1 == mp_add_~i~0 % 256); 25615#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 25610#L93-1 assume !(3 == mp_add_~i~0 % 256); 25611#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25604#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25605#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25557#L76 assume !(0 == mp_add_~i~0 % 256); 25546#L76-2 assume !(1 == mp_add_~i~0 % 256); 25547#L77-1 assume !(2 == mp_add_~i~0 % 256); 25548#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 25640#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25636#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25637#L87-1 assume !(0 == mp_add_~i~0 % 256); 25651#L91-1 assume !(1 == mp_add_~i~0 % 256); 25650#L92-1 assume !(2 == mp_add_~i~0 % 256); 25631#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 25543#L94-1 [2021-10-28 09:54:31,263 INFO L793 eck$LassoCheckResult]: Loop: 25543#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25539#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25540#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 25555#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25552#L82 assume !(0 == mp_add_~i~0 % 256); 25553#L82-2 assume !(1 == mp_add_~i~0 % 256); 25556#L83-1 assume !(2 == mp_add_~i~0 % 256); 25554#L84-1 assume !(3 == mp_add_~i~0 % 256); 25549#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25542#L87-1 assume !(0 == mp_add_~i~0 % 256); 25530#L91-1 assume !(1 == mp_add_~i~0 % 256); 25531#L92-1 assume !(2 == mp_add_~i~0 % 256); 25532#L93-1 assume !(3 == mp_add_~i~0 % 256); 25543#L94-1 [2021-10-28 09:54:31,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash 544159432, now seen corresponding path program 1 times [2021-10-28 09:54:31,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:31,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74392992] [2021-10-28 09:54:31,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:31,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:31,598 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 31 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:54:31,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:31,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74392992] [2021-10-28 09:54:31,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74392992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:31,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316774957] [2021-10-28 09:54:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:31,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:31,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:31,601 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:31,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-28 09:54:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:32,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:54:32,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-28 09:54:33,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316774957] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:33,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:33,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 13 [2021-10-28 09:54:33,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055698793] [2021-10-28 09:54:33,596 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-28 09:54:33,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:33,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597870268] [2021-10-28 09:54:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:33,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:33,606 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:33,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:33,859 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:33,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:33,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:33,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:33,860 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:33,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:33,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:33,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:33,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-28 09:54:33,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:33,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:33,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:33,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:34,418 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:34,418 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:34,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:34,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:34,421 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:34,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 09:54:34,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:34,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:34,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 09:54:34,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:34,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:34,493 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:34,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 09:54:34,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:34,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:36,553 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:36,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:36,557 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:36,557 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:36,557 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:36,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:36,557 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:36,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:36,558 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:36,558 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:36,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-28 09:54:36,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:36,558 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:36,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:36,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:37,025 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:37,025 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:37,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,027 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 09:54:37,029 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 [2021-10-28 09:54:37,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:37,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:37,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,065 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 09:54:37,066 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 [2021-10-28 09:54:37,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,074 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:37,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:37,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 09:54:37,118 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:37,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,119 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 09:54:37,123 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 [2021-10-28 09:54:37,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,132 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:37,133 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:37,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-28 09:54:37,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,159 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 09:54:37,160 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 [2021-10-28 09:54:37,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,168 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:37,171 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:37,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,195 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:37,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,196 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 09:54:37,198 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 [2021-10-28 09:54:37,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,206 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:37,208 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:37,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 09:54:37,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,232 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 09:54:37,233 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 [2021-10-28 09:54:37,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,253 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:37,257 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:37,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,282 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:37,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,283 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 09:54:37,284 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 [2021-10-28 09:54:37,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,292 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:37,295 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:37,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,319 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 09:54:37,320 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 [2021-10-28 09:54:37,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:37,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,329 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:37,339 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:37,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-28 09:54:37,380 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:37,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,381 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 09:54:37,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:37,391 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,391 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:37,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,391 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:37,392 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:37,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-10-28 09:54:37,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,419 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 09:54:37,423 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 [2021-10-28 09:54:37,430 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,430 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:37,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,431 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:37,433 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:37,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,462 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:37,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,469 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,481 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 [2021-10-28 09:54:37,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 09:54:37,490 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,490 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:37,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,491 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:37,494 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:37,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-28 09:54:37,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,525 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 09:54:37,526 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 [2021-10-28 09:54:37,536 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,536 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:37,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,536 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:37,542 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:37,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-28 09:54:37,577 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:37,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,578 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 09:54:37,581 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 [2021-10-28 09:54:37,589 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,590 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:37,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,590 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:37,593 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:37,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-10-28 09:54:37,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,626 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 09:54:37,627 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 [2021-10-28 09:54:37,636 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,636 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:37,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,637 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:37,644 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:37,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-10-28 09:54:37,687 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:37,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,690 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 09:54:37,692 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 [2021-10-28 09:54:37,700 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,700 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:37,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,701 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:37,703 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:37,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,733 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 09:54:37,735 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 [2021-10-28 09:54:37,743 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,744 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:37,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,744 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:37,748 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:37,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-28 09:54:37,780 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:37,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,781 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 09:54:37,782 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 [2021-10-28 09:54:37,791 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,791 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:37,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,792 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:37,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:37,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-28 09:54:37,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:37,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:37,828 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:37,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 09:54:37,830 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 [2021-10-28 09:54:37,839 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:37,839 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:37,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:37,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:37,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:37,839 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:37,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:37,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:37,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:37,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:37,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:37,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:54:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:54:37,883 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 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) [2021-10-28 09:54:38,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:38,978 INFO L93 Difference]: Finished difference Result 317 states and 339 transitions. [2021-10-28 09:54:38,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:54:38,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 339 transitions. [2021-10-28 09:54:38,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2021-10-28 09:54:38,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 200 states and 216 transitions. [2021-10-28 09:54:38,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-10-28 09:54:38,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-10-28 09:54:38,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 216 transitions. [2021-10-28 09:54:38,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:38,982 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 216 transitions. [2021-10-28 09:54:38,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 216 transitions. [2021-10-28 09:54:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 122. [2021-10-28 09:54:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.0819672131147542) internal successors, (132), 121 states have internal predecessors, (132), 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) [2021-10-28 09:54:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-28 09:54:38,986 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-28 09:54:38,986 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-28 09:54:38,986 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-28 09:54:38,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 132 transitions. [2021-10-28 09:54:38,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:38,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:38,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:38,988 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:38,988 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:38,988 INFO L791 eck$LassoCheckResult]: Stem: 26204#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 26198#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26191#L51 assume !(0 == mp_add_~a3~0 % 256); 26192#L51-1 mp_add_~nb~0 := 4; 26193#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26194#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26195#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26201#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26202#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26277#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26276#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26275#L76-2 assume !(1 == mp_add_~i~0 % 256); 26274#L77-1 assume !(2 == mp_add_~i~0 % 256); 26273#L78-1 assume !(3 == mp_add_~i~0 % 256); 26272#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26271#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 26270#L82-2 assume !(1 == mp_add_~i~0 % 256); 26269#L83-1 assume !(2 == mp_add_~i~0 % 256); 26268#L84-1 assume !(3 == mp_add_~i~0 % 256); 26267#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26266#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26265#L91-1 assume !(1 == mp_add_~i~0 % 256); 26264#L92-1 assume !(2 == mp_add_~i~0 % 256); 26263#L93-1 assume !(3 == mp_add_~i~0 % 256); 26262#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26260#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26259#L76 assume !(0 == mp_add_~i~0 % 256); 26258#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26257#L77-1 assume !(2 == mp_add_~i~0 % 256); 26256#L78-1 assume !(3 == mp_add_~i~0 % 256); 26255#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26254#L82 assume !(0 == mp_add_~i~0 % 256); 26253#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 26252#L83-1 assume !(2 == mp_add_~i~0 % 256); 26251#L84-1 assume !(3 == mp_add_~i~0 % 256); 26249#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26250#L87-1 assume !(0 == mp_add_~i~0 % 256); 26245#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26246#L92-1 assume !(2 == mp_add_~i~0 % 256); 26241#L93-1 assume !(3 == mp_add_~i~0 % 256); 26242#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26237#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26238#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26233#L76 assume !(0 == mp_add_~i~0 % 256); 26234#L76-2 assume !(1 == mp_add_~i~0 % 256); 26229#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26230#L78-1 assume !(3 == mp_add_~i~0 % 256); 26225#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26226#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26285#L87-1 assume !(0 == mp_add_~i~0 % 256); 26309#L91-1 assume !(1 == mp_add_~i~0 % 256); 26308#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26307#L93-1 assume !(3 == mp_add_~i~0 % 256); 26306#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26305#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26304#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26303#L76 assume !(0 == mp_add_~i~0 % 256); 26302#L76-2 assume !(1 == mp_add_~i~0 % 256); 26301#L77-1 assume !(2 == mp_add_~i~0 % 256); 26300#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 26299#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26213#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26199#L87-1 assume !(0 == mp_add_~i~0 % 256); 26190#L91-1 assume !(1 == mp_add_~i~0 % 256); 26188#L92-1 assume !(2 == mp_add_~i~0 % 256); 26189#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26200#L94-1 [2021-10-28 09:54:38,988 INFO L793 eck$LassoCheckResult]: Loop: 26200#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26196#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26197#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 26214#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26209#L82 assume !(0 == mp_add_~i~0 % 256); 26210#L82-2 assume !(1 == mp_add_~i~0 % 256); 26218#L83-1 assume !(2 == mp_add_~i~0 % 256); 26219#L84-1 assume !(3 == mp_add_~i~0 % 256); 26290#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26289#L87-1 assume !(0 == mp_add_~i~0 % 256); 26288#L91-1 assume !(1 == mp_add_~i~0 % 256); 26287#L92-1 assume !(2 == mp_add_~i~0 % 256); 26203#L93-1 assume !(3 == mp_add_~i~0 % 256); 26200#L94-1 [2021-10-28 09:54:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash -820936562, now seen corresponding path program 1 times [2021-10-28 09:54:38,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:38,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052417567] [2021-10-28 09:54:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:38,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 09:54:39,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:39,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052417567] [2021-10-28 09:54:39,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052417567] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:39,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795324975] [2021-10-28 09:54:39,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:39,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:39,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:39,283 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:39,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 09:54:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:39,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:54:39,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-28 09:54:40,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795324975] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:40,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:40,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-28 09:54:40,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848344717] [2021-10-28 09:54:40,715 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-10-28 09:54:40,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:40,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058100911] [2021-10-28 09:54:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:40,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:40,726 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:40,731 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:40,988 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:40,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:40,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:40,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:40,988 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:40,988 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:40,988 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:40,988 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:40,988 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-28 09:54:40,988 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:40,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:40,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:41,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:41,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:41,450 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:41,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:41,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:41,453 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:41,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 09:54:41,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:41,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:41,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:41,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:41,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:41,519 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:41,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-28 09:54:41,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:41,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:43,307 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:43,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:43,311 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:43,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:43,312 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:43,312 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:43,312 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:43,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,312 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:43,312 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:43,312 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-28 09:54:43,312 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:43,312 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:43,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:43,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:43,712 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:43,712 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:43,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,714 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-28 09:54:43,715 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 [2021-10-28 09:54:43,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:43,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:43,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:43,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,749 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-28 09:54:43,750 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 [2021-10-28 09:54:43,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:43,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:43,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-10-28 09:54:43,781 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:43,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,782 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-28 09:54:43,783 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 [2021-10-28 09:54:43,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,791 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:43,793 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:43,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-10-28 09:54:43,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,819 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-28 09:54:43,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:43,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,828 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:43,830 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:43,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:43,854 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:43,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,855 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-28 09:54:43,856 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 [2021-10-28 09:54:43,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,864 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:43,868 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:43,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-28 09:54:43,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,897 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-28 09:54:43,898 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 [2021-10-28 09:54:43,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,907 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:43,909 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:43,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:43,936 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:43,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,937 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-28 09:54:43,938 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 [2021-10-28 09:54:43,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,948 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:43,953 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:43,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:43,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:43,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-10-28 09:54:43,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:43,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:43,986 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:43,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-28 09:54:43,988 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 [2021-10-28 09:54:43,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:43,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:43,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:43,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:43,997 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:44,000 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:44,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-10-28 09:54:44,029 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:44,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,030 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-28 09:54:44,032 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 [2021-10-28 09:54:44,040 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,041 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:44,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,041 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:44,045 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:44,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-10-28 09:54:44,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,078 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-28 09:54:44,079 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 [2021-10-28 09:54:44,088 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,088 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:44,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,089 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:44,090 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:44,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-28 09:54:44,119 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:44,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,120 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-28 09:54:44,122 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 [2021-10-28 09:54:44,131 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,131 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:44,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,131 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:44,136 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:44,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-10-28 09:54:44,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,173 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-28 09:54:44,174 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 [2021-10-28 09:54:44,183 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,183 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:44,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,184 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:44,187 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:44,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2021-10-28 09:54:44,224 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:44,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,226 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-28 09:54:44,228 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 [2021-10-28 09:54:44,237 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,237 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:44,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,238 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:44,246 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:44,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-10-28 09:54:44,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,293 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-28 09:54:44,301 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 [2021-10-28 09:54:44,315 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,315 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:44,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,316 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:44,324 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:44,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-28 09:54:44,385 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:44,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,386 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-28 09:54:44,388 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 [2021-10-28 09:54:44,396 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,397 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:44,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,397 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:44,401 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:44,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-28 09:54:44,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,434 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-28 09:54:44,435 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 [2021-10-28 09:54:44,444 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,444 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:44,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,444 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:44,449 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:44,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2021-10-28 09:54:44,504 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:44,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,506 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,513 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 [2021-10-28 09:54:44,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-28 09:54:44,523 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,523 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:44,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,523 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:44,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:44,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2021-10-28 09:54:44,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:44,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:44,567 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:44,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-28 09:54:44,568 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 [2021-10-28 09:54:44,577 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:44,577 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:44,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:44,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:44,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:44,578 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:44,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:44,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:44,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:44,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Ended with exit code 0 [2021-10-28 09:54:44,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:44,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:54:44,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:54:44,615 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. cyclomatic complexity: 11 Second operand has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 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) [2021-10-28 09:54:46,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:46,502 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2021-10-28 09:54:46,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:54:46,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 162 transitions. [2021-10-28 09:54:46,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:46,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 120 states and 125 transitions. [2021-10-28 09:54:46,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-28 09:54:46,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-28 09:54:46,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 125 transitions. [2021-10-28 09:54:46,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:46,506 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 125 transitions. [2021-10-28 09:54:46,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 125 transitions. [2021-10-28 09:54:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-10-28 09:54:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.043859649122807) internal successors, (119), 113 states have internal predecessors, (119), 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) [2021-10-28 09:54:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2021-10-28 09:54:46,510 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-28 09:54:46,510 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-28 09:54:46,510 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-28 09:54:46,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 119 transitions. [2021-10-28 09:54:46,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:46,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:46,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:46,512 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:46,512 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:46,513 INFO L791 eck$LassoCheckResult]: Stem: 26723#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 26717#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26710#L51 assume !(0 == mp_add_~a3~0 % 256); 26711#L51-1 mp_add_~nb~0 := 4; 26712#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26713#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26714#L65 assume !(0 == mp_add_~b1~0 % 256); 26720#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26721#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26765#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26764#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26763#L76-2 assume !(1 == mp_add_~i~0 % 256); 26762#L77-1 assume !(2 == mp_add_~i~0 % 256); 26761#L78-1 assume !(3 == mp_add_~i~0 % 256); 26760#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26731#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 26732#L82-2 assume !(1 == mp_add_~i~0 % 256); 26757#L83-1 assume !(2 == mp_add_~i~0 % 256); 26756#L84-1 assume !(3 == mp_add_~i~0 % 256); 26755#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26754#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26753#L91-1 assume !(1 == mp_add_~i~0 % 256); 26752#L92-1 assume !(2 == mp_add_~i~0 % 256); 26751#L93-1 assume !(3 == mp_add_~i~0 % 256); 26750#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26749#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26748#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26747#L76 assume !(0 == mp_add_~i~0 % 256); 26746#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26745#L77-1 assume !(2 == mp_add_~i~0 % 256); 26744#L78-1 assume !(3 == mp_add_~i~0 % 256); 26743#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26742#L82 assume !(0 == mp_add_~i~0 % 256); 26741#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 26739#L83-1 assume !(2 == mp_add_~i~0 % 256); 26740#L84-1 assume !(3 == mp_add_~i~0 % 256); 26728#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26729#L87-1 assume !(0 == mp_add_~i~0 % 256); 26816#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26815#L92-1 assume !(2 == mp_add_~i~0 % 256); 26814#L93-1 assume !(3 == mp_add_~i~0 % 256); 26719#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26715#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26716#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26735#L76 assume !(0 == mp_add_~i~0 % 256); 26724#L76-2 assume !(1 == mp_add_~i~0 % 256); 26725#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26809#L78-1 assume !(3 == mp_add_~i~0 % 256); 26808#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26807#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26805#L87-1 assume !(0 == mp_add_~i~0 % 256); 26803#L91-1 assume !(1 == mp_add_~i~0 % 256); 26801#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26799#L93-1 assume !(3 == mp_add_~i~0 % 256); 26797#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26795#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26793#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26791#L76 assume !(0 == mp_add_~i~0 % 256); 26789#L76-2 assume !(1 == mp_add_~i~0 % 256); 26787#L77-1 assume !(2 == mp_add_~i~0 % 256); 26785#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 26783#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26780#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26781#L87-1 assume !(0 == mp_add_~i~0 % 256); 26820#L91-1 assume !(1 == mp_add_~i~0 % 256); 26819#L92-1 assume !(2 == mp_add_~i~0 % 256); 26770#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26771#L94-1 [2021-10-28 09:54:46,513 INFO L793 eck$LassoCheckResult]: Loop: 26771#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26818#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26817#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 26758#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26759#L82 assume !(0 == mp_add_~i~0 % 256); 26736#L82-2 assume !(1 == mp_add_~i~0 % 256); 26737#L83-1 assume !(2 == mp_add_~i~0 % 256); 26733#L84-1 assume !(3 == mp_add_~i~0 % 256); 26734#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26779#L87-1 assume !(0 == mp_add_~i~0 % 256); 26777#L91-1 assume !(1 == mp_add_~i~0 % 256); 26775#L92-1 assume !(2 == mp_add_~i~0 % 256); 26772#L93-1 assume !(3 == mp_add_~i~0 % 256); 26771#L94-1 [2021-10-28 09:54:46,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:46,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1140638096, now seen corresponding path program 1 times [2021-10-28 09:54:46,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:46,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601722775] [2021-10-28 09:54:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:46,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-28 09:54:46,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:46,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601722775] [2021-10-28 09:54:46,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601722775] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:46,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934554818] [2021-10-28 09:54:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:46,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:46,863 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:46,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-28 09:54:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:47,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:54:47,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-28 09:54:47,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934554818] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:47,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:47,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 09:54:47,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457186995] [2021-10-28 09:54:47,841 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:54:47,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 4 times [2021-10-28 09:54:47,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:47,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895510243] [2021-10-28 09:54:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:47,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:47,849 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:47,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:48,119 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:48,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:48,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:48,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:48,120 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:48,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:48,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:48,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:48,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-28 09:54:48,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:48,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:48,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:48,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:48,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:48,492 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:48,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:48,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:48,494 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:48,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-28 09:54:48,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:48,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:48,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:48,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:48,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:48,557 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:48,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-28 09:54:48,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:48,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:50,580 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:50,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2021-10-28 09:54:50,584 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:50,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:50,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:50,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:50,584 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:50,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:50,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:50,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:50,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-28 09:54:50,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:50,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:50,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:50,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:50,926 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:50,927 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:50,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:50,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:50,930 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:50,931 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 [2021-10-28 09:54:50,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-28 09:54:50,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:50,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:50,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:50,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:50,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:50,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:50,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:50,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:50,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:50,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:50,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:50,970 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:50,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-28 09:54:50,972 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 [2021-10-28 09:54:50,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:50,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:50,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:50,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:50,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:50,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:50,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:50,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-10-28 09:54:51,007 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:51,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,008 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-28 09:54:51,009 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 [2021-10-28 09:54:51,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:51,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,017 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:51,020 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:51,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,047 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-28 09:54:51,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:54:51,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:51,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,058 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:51,060 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:51,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,084 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:51,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,085 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-28 09:54:51,086 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 [2021-10-28 09:54:51,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:51,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,095 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:51,099 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:51,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,163 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-28 09:54:51,165 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 [2021-10-28 09:54:51,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:51,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,173 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:51,175 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:51,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2021-10-28 09:54:51,200 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:51,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,201 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-28 09:54:51,202 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 [2021-10-28 09:54:51,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:51,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,212 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:51,219 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:51,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,249 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-28 09:54:51,250 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 [2021-10-28 09:54:51,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:51,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,259 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:51,261 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:51,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-10-28 09:54:51,287 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:51,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,288 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-28 09:54:51,291 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 [2021-10-28 09:54:51,299 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,299 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:51,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,299 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:51,302 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:51,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2021-10-28 09:54:51,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,333 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-28 09:54:51,334 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 [2021-10-28 09:54:51,342 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,342 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:51,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,342 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:51,344 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:51,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0 [2021-10-28 09:54:51,369 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:51,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,370 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-28 09:54:51,371 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 [2021-10-28 09:54:51,380 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,380 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:51,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,380 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:51,384 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:51,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Ended with exit code 0 [2021-10-28 09:54:51,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,419 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-28 09:54:51,421 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 [2021-10-28 09:54:51,431 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,431 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:51,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,431 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:51,433 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:51,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Ended with exit code 0 [2021-10-28 09:54:51,463 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:51,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,464 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-28 09:54:51,467 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 [2021-10-28 09:54:51,476 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,476 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:51,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,476 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:51,482 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:51,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-10-28 09:54:51,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,524 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-28 09:54:51,525 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 [2021-10-28 09:54:51,534 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,534 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:51,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,535 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:51,538 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:51,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Ended with exit code 0 [2021-10-28 09:54:51,568 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:51,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,569 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-28 09:54:51,570 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 [2021-10-28 09:54:51,578 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,578 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:51,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,579 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:51,582 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:51,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Ended with exit code 0 [2021-10-28 09:54:51,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,612 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-28 09:54:51,613 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 [2021-10-28 09:54:51,621 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,621 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:51,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,622 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:51,623 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:51,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,649 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:51,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,650 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-28 09:54:51,652 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 [2021-10-28 09:54:51,660 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,660 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:51,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,661 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:51,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:51,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:51,749 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:51,754 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 [2021-10-28 09:54:51,764 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:51,764 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:51,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:51,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:51,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:51,764 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:51,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:51,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:51,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-28 09:54:51,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:51,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:51,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:54:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:54:51,825 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. cyclomatic complexity: 6 Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2021-10-28 09:54:52,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:52,085 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2021-10-28 09:54:52,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:54:52,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2021-10-28 09:54:52,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:52,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 108 states and 110 transitions. [2021-10-28 09:54:52,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2021-10-28 09:54:52,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2021-10-28 09:54:52,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 110 transitions. [2021-10-28 09:54:52,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:52,088 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 110 transitions. [2021-10-28 09:54:52,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 110 transitions. [2021-10-28 09:54:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2021-10-28 09:54:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.025) internal successors, (82), 79 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2021-10-28 09:54:52,090 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-28 09:54:52,090 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-28 09:54:52,090 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-28 09:54:52,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 82 transitions. [2021-10-28 09:54:52,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 09:54:52,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:52,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:52,091 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:52,092 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:52,092 INFO L791 eck$LassoCheckResult]: Stem: 27159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 27152#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 27147#L51 assume !(0 == mp_add_~a3~0 % 256); 27148#L51-1 mp_add_~nb~0 := 4; 27149#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27150#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27151#L65 assume !(0 == mp_add_~b1~0 % 256); 27157#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 27158#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27183#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27182#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 27181#L76-2 assume !(1 == mp_add_~i~0 % 256); 27180#L77-1 assume !(2 == mp_add_~i~0 % 256); 27179#L78-1 assume !(3 == mp_add_~i~0 % 256); 27178#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27177#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 27168#L82-2 assume !(1 == mp_add_~i~0 % 256); 27169#L83-1 assume !(2 == mp_add_~i~0 % 256); 27167#L84-1 assume !(3 == mp_add_~i~0 % 256); 27163#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27155#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 27144#L91-1 assume !(1 == mp_add_~i~0 % 256); 27145#L92-1 assume !(2 == mp_add_~i~0 % 256); 27146#L93-1 assume !(3 == mp_add_~i~0 % 256); 27156#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27153#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27154#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27170#L76 assume !(0 == mp_add_~i~0 % 256); 27189#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 27187#L77-1 assume !(2 == mp_add_~i~0 % 256); 27184#L78-1 assume !(3 == mp_add_~i~0 % 256); 27185#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27165#L82 assume !(0 == mp_add_~i~0 % 256); 27166#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 27172#L83-1 assume !(2 == mp_add_~i~0 % 256); 27173#L84-1 assume !(3 == mp_add_~i~0 % 256); 27223#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27222#L87-1 assume !(0 == mp_add_~i~0 % 256); 27221#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 27220#L92-1 assume !(2 == mp_add_~i~0 % 256); 27219#L93-1 assume !(3 == mp_add_~i~0 % 256); 27217#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27215#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27213#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27174#L76 assume !(0 == mp_add_~i~0 % 256); 27160#L76-2 assume !(1 == mp_add_~i~0 % 256); 27161#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 27162#L78-1 assume !(3 == mp_add_~i~0 % 256); 27164#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27171#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27218#L87-1 assume !(0 == mp_add_~i~0 % 256); 27216#L91-1 assume !(1 == mp_add_~i~0 % 256); 27214#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 27212#L93-1 assume !(3 == mp_add_~i~0 % 256); 27211#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27210#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27209#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27208#L76 assume !(0 == mp_add_~i~0 % 256); 27207#L76-2 assume !(1 == mp_add_~i~0 % 256); 27205#L77-1 assume !(2 == mp_add_~i~0 % 256); 27203#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 27201#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27199#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27197#L87-1 assume !(0 == mp_add_~i~0 % 256); 27195#L91-1 assume !(1 == mp_add_~i~0 % 256); 27193#L92-1 assume !(2 == mp_add_~i~0 % 256); 27191#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 27190#L94-1 [2021-10-28 09:54:52,092 INFO L793 eck$LassoCheckResult]: Loop: 27190#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27188#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27186#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 27175#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27176#L82 assume !(0 == mp_add_~i~0 % 256); 27206#L82-2 assume !(1 == mp_add_~i~0 % 256); 27204#L83-1 assume !(2 == mp_add_~i~0 % 256); 27202#L84-1 assume !(3 == mp_add_~i~0 % 256); 27200#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27198#L87-1 assume !(0 == mp_add_~i~0 % 256); 27196#L91-1 assume !(1 == mp_add_~i~0 % 256); 27194#L92-1 assume !(2 == mp_add_~i~0 % 256); 27192#L93-1 assume !(3 == mp_add_~i~0 % 256); 27190#L94-1 [2021-10-28 09:54:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash -151906736, now seen corresponding path program 1 times [2021-10-28 09:54:52,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:52,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625349364] [2021-10-28 09:54:52,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:52,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:52,121 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:52,162 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 5 times [2021-10-28 09:54:52,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:52,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017033657] [2021-10-28 09:54:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:52,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:52,170 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:52,174 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:52,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash -611234983, now seen corresponding path program 1 times [2021-10-28 09:54:52,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:52,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324945362] [2021-10-28 09:54:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:52,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 83 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 09:54:52,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:52,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324945362] [2021-10-28 09:54:52,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324945362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:52,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203859469] [2021-10-28 09:54:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:52,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:54:52,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:52,509 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:54:52,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2021-10-28 09:54:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:53,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:54:53,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 09:54:53,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203859469] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:54:53,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:54:53,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-10-28 09:54:53,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184600956] [2021-10-28 09:54:54,000 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:54,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:54,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:54,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:54,001 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:54:54,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:54,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:54,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:54,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-28 09:54:54,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:54,001 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:54,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:54,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:54,478 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:54,479 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:54:54,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:54,481 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:54,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-28 09:54:54,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:54,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:54,500 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:54:54,500 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:54:54,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:54,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:54,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:54,524 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:54,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-28 09:54:54,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:54:54,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:54,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:54,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:54,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:54,597 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:54,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-28 09:54:54,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:54:54,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:54:57,060 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:54:57,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,064 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:54:57,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:54:57,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:54:57,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:54:57,065 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:54:57,065 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,065 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:54:57,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:54:57,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-28 09:54:57,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:54:57,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:54:57,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:54:57,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:54:57,441 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:54:57,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,443 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-28 09:54:57,444 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 [2021-10-28 09:54:57,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:57,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:57,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,487 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-28 09:54:57,488 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 [2021-10-28 09:54:57,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:54:57,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:54:57,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-10-28 09:54:57,525 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:54:57,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,526 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-28 09:54:57,527 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 [2021-10-28 09:54:57,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,537 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:57,540 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:57,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,573 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-28 09:54:57,575 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 [2021-10-28 09:54:57,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,584 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:57,585 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:57,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Ended with exit code 0 [2021-10-28 09:54:57,613 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 09:54:57,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,614 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-28 09:54:57,624 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 [2021-10-28 09:54:57,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,634 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:57,644 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:57,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Ended with exit code 0 [2021-10-28 09:54:57,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,676 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-28 09:54:57,677 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 [2021-10-28 09:54:57,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,687 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:57,689 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:57,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:57,717 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 09:54:57,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,718 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-28 09:54:57,719 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 [2021-10-28 09:54:57,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,729 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:57,734 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:57,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Ended with exit code 0 [2021-10-28 09:54:57,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,766 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-28 09:54:57,768 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 [2021-10-28 09:54:57,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:54:57,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,777 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:57,779 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:57,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Ended with exit code 0 [2021-10-28 09:54:57,808 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 09:54:57,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,809 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-28 09:54:57,811 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 [2021-10-28 09:54:57,820 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:57,820 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:57,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,820 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:57,823 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:57,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-28 09:54:57,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,857 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-28 09:54:57,858 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 [2021-10-28 09:54:57,866 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:57,866 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:57,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,867 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:54:57,868 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:54:57,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-28 09:54:57,896 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 09:54:57,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,897 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-28 09:54:57,898 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 [2021-10-28 09:54:57,907 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:57,907 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:57,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,907 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:57,912 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:57,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Ended with exit code 0 [2021-10-28 09:54:57,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,947 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-28 09:54:57,948 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 [2021-10-28 09:54:57,957 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:57,957 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 09:54:57,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,957 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:57,959 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:57,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:57,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:57,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Ended with exit code 0 [2021-10-28 09:54:57,988 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 09:54:57,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:57,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:57,989 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:57,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-28 09:54:57,990 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 [2021-10-28 09:54:57,999 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:57,999 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:57,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:57,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:57,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:57,999 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:58,005 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:58,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:58,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:58,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Ended with exit code 0 [2021-10-28 09:54:58,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:58,052 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:58,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-28 09:54:58,053 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 [2021-10-28 09:54:58,062 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:58,063 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:58,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:58,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:58,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:58,063 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 09:54:58,066 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 09:54:58,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:58,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:58,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Ended with exit code 0 [2021-10-28 09:54:58,100 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 09:54:58,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:58,101 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:58,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-28 09:54:58,102 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 [2021-10-28 09:54:58,111 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:58,111 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:58,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:58,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:58,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:58,112 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:58,116 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:58,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:58,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:58,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Ended with exit code 0 [2021-10-28 09:54:58,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:58,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:58,153 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:58,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-28 09:54:58,154 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 [2021-10-28 09:54:58,163 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:58,163 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 09:54:58,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:58,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:58,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:58,163 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 09:54:58,165 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 09:54:58,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:58,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:58,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Ended with exit code 0 [2021-10-28 09:54:58,195 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 09:54:58,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:58,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:58,196 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:58,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-28 09:54:58,197 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 [2021-10-28 09:54:58,206 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:58,207 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:58,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:58,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:58,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:58,207 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:58,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:58,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:58,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:58,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Ended with exit code 0 [2021-10-28 09:54:58,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:58,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:58,251 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:58,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-28 09:54:58,253 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 [2021-10-28 09:54:58,262 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 09:54:58,262 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 09:54:58,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:54:58,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:54:58,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:54:58,262 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 09:54:58,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:54:58,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:54:58,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:54:58,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:58,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:54:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:54:58,327 INFO L87 Difference]: Start difference. First operand 80 states and 82 transitions. cyclomatic complexity: 3 Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:54:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:59,223 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2021-10-28 09:54:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:54:59,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 72 transitions. [2021-10-28 09:54:59,224 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:54:59,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 0 states and 0 transitions. [2021-10-28 09:54:59,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:54:59,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:54:59,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:54:59,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:59,225 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:59,225 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:59,225 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:54:59,225 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-28 09:54:59,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:54:59,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:54:59,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:54:59,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:54:59 BoogieIcfgContainer [2021-10-28 09:54:59,231 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:54:59,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:54:59,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:54:59,231 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:54:59,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:32" (3/4) ... [2021-10-28 09:54:59,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:54:59,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:54:59,236 INFO L168 Benchmark]: Toolchain (without parser) took 207931.58 ms. Allocated memory was 119.5 MB in the beginning and 260.0 MB in the end (delta: 140.5 MB). Free memory was 86.8 MB in the beginning and 99.0 MB in the end (delta: -12.2 MB). Peak memory consumption was 127.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:59,236 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 41.3 MB in the beginning and 41.2 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:59,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.33 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 93.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:59,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.69 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 92.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:59,237 INFO L168 Benchmark]: Boogie Preprocessor took 58.63 ms. Allocated memory is still 119.5 MB. Free memory was 92.1 MB in the beginning and 90.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:59,238 INFO L168 Benchmark]: RCFGBuilder took 518.52 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 77.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:59,238 INFO L168 Benchmark]: BuchiAutomizer took 206845.05 ms. Allocated memory was 119.5 MB in the beginning and 260.0 MB in the end (delta: 140.5 MB). Free memory was 77.9 MB in the beginning and 99.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 120.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:59,238 INFO L168 Benchmark]: Witness Printer took 3.63 ms. Allocated memory is still 260.0 MB. Free memory is still 99.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:59,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 41.3 MB in the beginning and 41.2 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.33 ms. Allocated memory is still 119.5 MB. Free memory was 86.6 MB in the beginning and 93.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.69 ms. Allocated memory is still 119.5 MB. Free memory was 93.8 MB in the beginning and 92.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.63 ms. Allocated memory is still 119.5 MB. Free memory was 92.1 MB in the beginning and 90.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 518.52 ms. Allocated memory is still 119.5 MB. Free memory was 90.5 MB in the beginning and 77.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 206845.05 ms. Allocated memory was 119.5 MB in the beginning and 260.0 MB in the end (delta: 140.5 MB). Free memory was 77.9 MB in the beginning and 99.0 MB in the end (delta: -21.1 MB). Peak memory consumption was 120.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.63 ms. Allocated memory is still 260.0 MB. Free memory is still 99.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 31 terminating modules (31 trivial, 0 deterministic, 0 nondeterministic). 31 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 206.7s and 32 iterations. TraceHistogramMax:7. Analysis of lassos took 74.2s. Construction of modules took 121.4s. Büchi inclusion checks took 9.9s. Highest rank in rank-based complementation 0. Minimization of det autom 31. Minimization of nondet autom 0. Automata minimization 0.4s AutomataMinimizationTime, 30 MinimizatonAttempts, 4534 StatesRemovedByMinimization, 29 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had 1001 states and ocurred in iteration 23. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1304 SDtfs, 4037 SDslu, 2458 SDs, 0 SdLazy, 8607 SolverSat, 552 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 121.4s Time LassoAnalysisResults: nont0 unkn0 SFLI17 SFLT0 conc2 concLT0 SILN0 SILU5 SILI7 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital58 mio100 ax100 hnf100 lsp81 ukn100 mio100 lsp100 div393 bol100 ite100 ukn100 eq146 hnf47 smp69 dnf100 smp100 tf102 neg98 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 59ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 12.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:54:59,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Ended with exit code 0 [2021-10-28 09:54:59,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:59,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:59,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-28 09:55:00,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2021-10-28 09:55:00,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-28 09:55:00,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:55:00,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:55:00,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-28 09:55:01,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:55:01,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:55:01,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-28 09:55:01,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-28 09:55:01,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 09:55:02,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 09:55:02,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99f232a4-cc84-4983-b53f-f981638f570e/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...