./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt --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 a92d749021b3b94f4ecd59f60bbcb6b80102c08a 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:16:24,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:16:24,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:16:24,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:16:24,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:16:24,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:16:24,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:16:24,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:16:24,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:16:24,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:16:24,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:16:24,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:16:24,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:16:24,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:16:24,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:16:24,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:16:24,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:16:24,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:16:24,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:16:24,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:16:24,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:16:24,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:16:24,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:16:24,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:16:24,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:16:24,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:16:24,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:16:24,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:16:24,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:16:24,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:16:24,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:16:24,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:16:24,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:16:24,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:16:24,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:16:24,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:16:24,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:16:24,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:16:24,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:16:24,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:16:24,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:16:24,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:16:24,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:16:24,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:16:24,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:16:24,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:16:24,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:16:24,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:16:24,431 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:16:24,431 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:16:24,431 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:16:24,432 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:16:24,432 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:16:24,432 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:16:24,432 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:16:24,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:16:24,433 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:16:24,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:16:24,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:16:24,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:16:24,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:16:24,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:16:24,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:16:24,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:16:24,434 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:16:24,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:16:24,435 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:16:24,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:16:24,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:16:24,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:16:24,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:16:24,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:16:24,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:16:24,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:16:24,437 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:16:24,437 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_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a92d749021b3b94f4ecd59f60bbcb6b80102c08a [2021-10-13 00:16:24,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:16:24,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:16:24,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:16:24,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:16:24,778 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:16:24,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-13 00:16:24,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/data/57e026991/6a9e857ee3eb45bdacb2e89ad5dff8c9/FLAG3f396876e [2021-10-13 00:16:25,337 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:16:25,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-13 00:16:25,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/data/57e026991/6a9e857ee3eb45bdacb2e89ad5dff8c9/FLAG3f396876e [2021-10-13 00:16:25,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/data/57e026991/6a9e857ee3eb45bdacb2e89ad5dff8c9 [2021-10-13 00:16:25,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:16:25,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:16:25,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:16:25,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:16:25,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:16:25,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:25,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fa6c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25, skipping insertion in model container [2021-10-13 00:16:25,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:25,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:16:25,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:16:25,904 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_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-13 00:16:25,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:16:25,948 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:16:25,960 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_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-13 00:16:25,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:16:25,999 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:16:25,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25 WrapperNode [2021-10-13 00:16:25,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:16:26,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:16:26,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:16:26,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:16:26,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:16:26,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:16:26,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:16:26,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:16:26,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:16:26,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:16:26,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:16:26,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:16:26,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (1/1) ... [2021-10-13 00:16:26,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:26,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:26,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:26,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:16:26,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:16:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:16:26,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:16:26,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:16:26,583 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:16:26,583 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 00:16:26,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:16:26 BoogieIcfgContainer [2021-10-13 00:16:26,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:16:26,587 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:16:26,587 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:16:26,609 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:16:26,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:16:26,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:16:25" (1/3) ... [2021-10-13 00:16:26,611 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4a0076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:16:26, skipping insertion in model container [2021-10-13 00:16:26,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:16:26,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:25" (2/3) ... [2021-10-13 00:16:26,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b4a0076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:16:26, skipping insertion in model container [2021-10-13 00:16:26,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:16:26,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:16:26" (3/3) ... [2021-10-13 00:16:26,614 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2021-10-13 00:16:26,667 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:16:26,668 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:16:26,668 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:16:26,668 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:16:26,668 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:16:26,668 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:16:26,669 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:16:26,669 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:16:26,685 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) [2021-10-13 00:16:26,705 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-13 00:16:26,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:26,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:26,713 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:16:26,713 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:26,714 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:16:26,714 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) [2021-10-13 00:16:26,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-13 00:16:26,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:26,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:26,719 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:16:26,720 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:26,727 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 [2021-10-13 00:16:26,728 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 [2021-10-13 00:16:26,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:26,734 INFO L82 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-13 00:16:26,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:26,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149397756] [2021-10-13 00:16:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:26,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:26,933 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:27,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:27,040 INFO L82 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-13 00:16:27,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:27,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195822623] [2021-10-13 00:16:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:27,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:27,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:27,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195822623] [2021-10-13 00:16:27,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195822623] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:27,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:27,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:27,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328555527] [2021-10-13 00:16:27,262 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:27,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:27,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:16:27,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:16:27,292 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) [2021-10-13 00:16:27,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:27,484 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-13 00:16:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:16:27,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-13 00:16:27,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-13 00:16:27,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-13 00:16:27,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-13 00:16:27,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-13 00:16:27,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-13 00:16:27,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:27,498 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-13 00:16:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-13 00:16:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-13 00:16:27,529 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) [2021-10-13 00:16:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-13 00:16:27,532 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-13 00:16:27,532 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-13 00:16:27,532 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:16:27,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-13 00:16:27,534 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:16:27,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:27,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:27,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:27,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:27,536 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 [2021-10-13 00:16:27,536 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 [2021-10-13 00:16:27,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:27,537 INFO L82 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-13 00:16:27,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:27,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621630493] [2021-10-13 00:16:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:27,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:27,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:27,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621630493] [2021-10-13 00:16:27,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621630493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:27,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:27,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:27,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589851842] [2021-10-13 00:16:27,699 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:27,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-13 00:16:27,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:27,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009455187] [2021-10-13 00:16:27,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:27,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:27,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:27,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009455187] [2021-10-13 00:16:27,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009455187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:27,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:27,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:27,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7171119] [2021-10-13 00:16:27,804 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:27,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:27,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:16:27,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:16:27,805 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) [2021-10-13 00:16:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:28,168 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-10-13 00:16:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:16:28,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-10-13 00:16:28,173 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-10-13 00:16:28,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-10-13 00:16:28,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-13 00:16:28,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-13 00:16:28,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-10-13 00:16:28,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:28,178 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-10-13 00:16:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-10-13 00:16:28,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-10-13 00:16:28,186 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) [2021-10-13 00:16:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-13 00:16:28,187 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-13 00:16:28,187 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-13 00:16:28,187 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:16:28,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-13 00:16:28,189 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:16:28,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:28,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:28,190 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:28,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:28,191 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 [2021-10-13 00:16:28,191 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 [2021-10-13 00:16:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:28,191 INFO L82 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-10-13 00:16:28,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:28,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130486578] [2021-10-13 00:16:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:28,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:28,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:28,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130486578] [2021-10-13 00:16:28,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130486578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:28,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:28,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:28,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71353671] [2021-10-13 00:16:28,278 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:28,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:28,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-10-13 00:16:28,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:28,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040780517] [2021-10-13 00:16:28,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:28,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:28,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:28,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040780517] [2021-10-13 00:16:28,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040780517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:28,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:28,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:28,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564457944] [2021-10-13 00:16:28,394 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:28,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:28,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:16:28,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:16:28,395 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) [2021-10-13 00:16:28,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:28,408 INFO L93 Difference]: Finished difference Result 66 states and 93 transitions. [2021-10-13 00:16:28,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:16:28,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 93 transitions. [2021-10-13 00:16:28,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:16:28,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 93 transitions. [2021-10-13 00:16:28,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-13 00:16:28,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-10-13 00:16:28,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 93 transitions. [2021-10-13 00:16:28,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:28,418 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-13 00:16:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 93 transitions. [2021-10-13 00:16:28,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-13 00:16:28,426 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) [2021-10-13 00:16:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-13 00:16:28,429 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-13 00:16:28,429 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-13 00:16:28,429 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:16:28,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 93 transitions. [2021-10-13 00:16:28,431 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:16:28,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:28,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:28,434 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:28,435 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:28,435 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 [2021-10-13 00:16:28,435 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 [2021-10-13 00:16:28,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:28,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 1 times [2021-10-13 00:16:28,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:28,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830272463] [2021-10-13 00:16:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:28,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:28,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:28,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830272463] [2021-10-13 00:16:28,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830272463] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:28,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:28,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:28,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392704595] [2021-10-13 00:16:28,579 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:28,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:28,580 INFO L82 PathProgramCache]: Analyzing trace with hash 686981138, now seen corresponding path program 3 times [2021-10-13 00:16:28,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:28,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727786038] [2021-10-13 00:16:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:28,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:28,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:28,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727786038] [2021-10-13 00:16:28,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727786038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:28,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:28,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:28,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410281233] [2021-10-13 00:16:28,630 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:28,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:28,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:16:28,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:16:28,632 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) [2021-10-13 00:16:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:28,820 INFO L93 Difference]: Finished difference Result 91 states and 134 transitions. [2021-10-13 00:16:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:16:28,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2021-10-13 00:16:28,826 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-10-13 00:16:28,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 134 transitions. [2021-10-13 00:16:28,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2021-10-13 00:16:28,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2021-10-13 00:16:28,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 134 transitions. [2021-10-13 00:16:28,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:28,829 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 134 transitions. [2021-10-13 00:16:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 134 transitions. [2021-10-13 00:16:28,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-10-13 00:16:28,840 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) [2021-10-13 00:16:28,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-13 00:16:28,844 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-13 00:16:28,845 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-13 00:16:28,845 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:16:28,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 120 transitions. [2021-10-13 00:16:28,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-13 00:16:28,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:28,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:28,848 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:28,848 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:28,848 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 [2021-10-13 00:16:28,849 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 [2021-10-13 00:16:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:28,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 2 times [2021-10-13 00:16:28,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:28,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029921295] [2021-10-13 00:16:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:28,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:28,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:28,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029921295] [2021-10-13 00:16:28,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029921295] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:28,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:28,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:28,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604560013] [2021-10-13 00:16:28,973 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:28,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:28,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 1 times [2021-10-13 00:16:28,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:28,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258243938] [2021-10-13 00:16:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:28,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:16:29,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:29,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258243938] [2021-10-13 00:16:29,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258243938] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:29,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:29,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:29,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784168942] [2021-10-13 00:16:29,014 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:29,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:29,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:16:29,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:16:29,016 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) [2021-10-13 00:16:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:29,207 INFO L93 Difference]: Finished difference Result 164 states and 234 transitions. [2021-10-13 00:16:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:16:29,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 234 transitions. [2021-10-13 00:16:29,211 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2021-10-13 00:16:29,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 234 transitions. [2021-10-13 00:16:29,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-10-13 00:16:29,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2021-10-13 00:16:29,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 234 transitions. [2021-10-13 00:16:29,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:29,215 INFO L681 BuchiCegarLoop]: Abstraction has 164 states and 234 transitions. [2021-10-13 00:16:29,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 234 transitions. [2021-10-13 00:16:29,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 91. [2021-10-13 00:16:29,228 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) [2021-10-13 00:16:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-13 00:16:29,232 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-13 00:16:29,232 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-13 00:16:29,232 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:16:29,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-13 00:16:29,234 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-13 00:16:29,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:29,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:29,236 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:29,237 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:29,238 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 [2021-10-13 00:16:29,238 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 [2021-10-13 00:16:29,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:29,239 INFO L82 PathProgramCache]: Analyzing trace with hash -2095675795, now seen corresponding path program 1 times [2021-10-13 00:16:29,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:29,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66079903] [2021-10-13 00:16:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:29,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:29,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:29,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66079903] [2021-10-13 00:16:29,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66079903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:29,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:29,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:16:29,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414883566] [2021-10-13 00:16:29,359 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:29,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 2 times [2021-10-13 00:16:29,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:29,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197526704] [2021-10-13 00:16:29,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:29,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:16:29,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:29,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197526704] [2021-10-13 00:16:29,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197526704] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:29,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:29,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:29,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466661861] [2021-10-13 00:16:29,382 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:29,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:16:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:16:29,384 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) [2021-10-13 00:16:29,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:29,839 INFO L93 Difference]: Finished difference Result 245 states and 348 transitions. [2021-10-13 00:16:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:16:29,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 348 transitions. [2021-10-13 00:16:29,842 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2021-10-13 00:16:29,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 348 transitions. [2021-10-13 00:16:29,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2021-10-13 00:16:29,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2021-10-13 00:16:29,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 348 transitions. [2021-10-13 00:16:29,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:29,846 INFO L681 BuchiCegarLoop]: Abstraction has 245 states and 348 transitions. [2021-10-13 00:16:29,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 348 transitions. [2021-10-13 00:16:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 91. [2021-10-13 00:16:29,852 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) [2021-10-13 00:16:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-13 00:16:29,853 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-13 00:16:29,853 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-13 00:16:29,853 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:16:29,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-13 00:16:29,854 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-13 00:16:29,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:29,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:29,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:29,856 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:29,856 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 [2021-10-13 00:16:29,856 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 [2021-10-13 00:16:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:29,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1829134745, now seen corresponding path program 1 times [2021-10-13 00:16:29,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:29,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038957361] [2021-10-13 00:16:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:29,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:29,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:29,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:29,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038957361] [2021-10-13 00:16:29,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038957361] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:29,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:29,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:29,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898265365] [2021-10-13 00:16:29,914 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:29,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:29,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 3 times [2021-10-13 00:16:29,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:29,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969113036] [2021-10-13 00:16:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:29,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:16:29,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:29,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969113036] [2021-10-13 00:16:29,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969113036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:29,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:29,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:29,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217514671] [2021-10-13 00:16:29,951 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:29,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:29,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:16:29,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:16:29,952 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) [2021-10-13 00:16:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:30,091 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2021-10-13 00:16:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:16:30,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 318 transitions. [2021-10-13 00:16:30,095 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-10-13 00:16:30,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 318 transitions. [2021-10-13 00:16:30,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-13 00:16:30,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-13 00:16:30,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 318 transitions. [2021-10-13 00:16:30,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:30,102 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 318 transitions. [2021-10-13 00:16:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 318 transitions. [2021-10-13 00:16:30,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-10-13 00:16:30,122 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) [2021-10-13 00:16:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2021-10-13 00:16:30,126 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-13 00:16:30,126 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-13 00:16:30,126 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:16:30,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 224 transitions. [2021-10-13 00:16:30,127 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2021-10-13 00:16:30,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:30,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:30,129 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:30,130 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:30,130 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 [2021-10-13 00:16:30,131 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 [2021-10-13 00:16:30,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:30,131 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-10-13 00:16:30,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:30,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839307432] [2021-10-13 00:16:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:30,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:30,162 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:30,189 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:30,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:30,190 INFO L82 PathProgramCache]: Analyzing trace with hash 857385497, now seen corresponding path program 1 times [2021-10-13 00:16:30,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:30,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786898103] [2021-10-13 00:16:30,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:30,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:16:30,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:30,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786898103] [2021-10-13 00:16:30,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786898103] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:30,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:30,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:30,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284214607] [2021-10-13 00:16:30,211 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:30,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:30,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:16:30,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:16:30,212 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) [2021-10-13 00:16:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:30,306 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2021-10-13 00:16:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:16:30,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 283 transitions. [2021-10-13 00:16:30,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2021-10-13 00:16:30,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 283 transitions. [2021-10-13 00:16:30,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-10-13 00:16:30,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-10-13 00:16:30,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 283 transitions. [2021-10-13 00:16:30,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:30,313 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 283 transitions. [2021-10-13 00:16:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 283 transitions. [2021-10-13 00:16:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-10-13 00:16:30,319 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) [2021-10-13 00:16:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 280 transitions. [2021-10-13 00:16:30,321 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-13 00:16:30,321 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-13 00:16:30,321 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:16:30,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 280 transitions. [2021-10-13 00:16:30,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2021-10-13 00:16:30,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:30,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:30,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:30,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:30,325 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 [2021-10-13 00:16:30,326 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 [2021-10-13 00:16:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:30,326 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-10-13 00:16:30,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:30,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592357751] [2021-10-13 00:16:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:30,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:30,346 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:30,370 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:30,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:30,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1165423065, now seen corresponding path program 1 times [2021-10-13 00:16:30,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:30,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254652181] [2021-10-13 00:16:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:30,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:30,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:30,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254652181] [2021-10-13 00:16:30,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254652181] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:30,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:30,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:16:30,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164949842] [2021-10-13 00:16:30,470 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:30,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:30,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:16:30,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:16:30,471 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) [2021-10-13 00:16:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:30,778 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-10-13 00:16:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:16:30,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 532 transitions. [2021-10-13 00:16:30,782 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 311 [2021-10-13 00:16:30,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 532 transitions. [2021-10-13 00:16:30,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-10-13 00:16:30,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-10-13 00:16:30,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 532 transitions. [2021-10-13 00:16:30,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:30,788 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 532 transitions. [2021-10-13 00:16:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 532 transitions. [2021-10-13 00:16:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 288. [2021-10-13 00:16:30,796 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) [2021-10-13 00:16:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2021-10-13 00:16:30,798 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-13 00:16:30,798 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-13 00:16:30,798 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:16:30,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 419 transitions. [2021-10-13 00:16:30,801 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2021-10-13 00:16:30,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:30,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:30,804 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:30,804 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:30,804 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 [2021-10-13 00:16:30,805 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 [2021-10-13 00:16:30,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:30,805 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-10-13 00:16:30,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:30,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259115408] [2021-10-13 00:16:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:30,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:30,851 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:30,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:30,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:30,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1115550935, now seen corresponding path program 1 times [2021-10-13 00:16:30,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:30,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506276830] [2021-10-13 00:16:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:30,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:16:30,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:30,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506276830] [2021-10-13 00:16:30,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506276830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:30,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:30,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:30,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647052256] [2021-10-13 00:16:30,933 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:30,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:16:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:16:30,934 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) [2021-10-13 00:16:31,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:31,028 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2021-10-13 00:16:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:16:31,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 495 transitions. [2021-10-13 00:16:31,032 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-10-13 00:16:31,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 495 transitions. [2021-10-13 00:16:31,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2021-10-13 00:16:31,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2021-10-13 00:16:31,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 495 transitions. [2021-10-13 00:16:31,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:31,036 INFO L681 BuchiCegarLoop]: Abstraction has 340 states and 495 transitions. [2021-10-13 00:16:31,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 495 transitions. [2021-10-13 00:16:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2021-10-13 00:16:31,042 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) [2021-10-13 00:16:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 489 transitions. [2021-10-13 00:16:31,044 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-13 00:16:31,044 INFO L587 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-13 00:16:31,044 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:16:31,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 489 transitions. [2021-10-13 00:16:31,046 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2021-10-13 00:16:31,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:31,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:31,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:31,048 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:31,048 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 [2021-10-13 00:16:31,048 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 [2021-10-13 00:16:31,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:31,049 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 4 times [2021-10-13 00:16:31,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:31,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5700635] [2021-10-13 00:16:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:31,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:31,082 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:31,116 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:31,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:31,121 INFO L82 PathProgramCache]: Analyzing trace with hash 722523925, now seen corresponding path program 1 times [2021-10-13 00:16:31,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:31,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707166010] [2021-10-13 00:16:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:31,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:31,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:31,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707166010] [2021-10-13 00:16:31,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707166010] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:31,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689567320] [2021-10-13 00:16:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:31,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:31,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:31,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:31,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:16:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:31,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:16:31,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:31,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689567320] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:31,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:16:31,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-10-13 00:16:31,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949639331] [2021-10-13 00:16:31,633 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:31,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:31,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:16:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:16:31,633 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) [2021-10-13 00:16:31,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:31,867 INFO L93 Difference]: Finished difference Result 359 states and 490 transitions. [2021-10-13 00:16:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:16:31,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 490 transitions. [2021-10-13 00:16:31,871 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 306 [2021-10-13 00:16:31,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 359 states and 490 transitions. [2021-10-13 00:16:31,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2021-10-13 00:16:31,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2021-10-13 00:16:31,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 490 transitions. [2021-10-13 00:16:31,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:31,877 INFO L681 BuchiCegarLoop]: Abstraction has 359 states and 490 transitions. [2021-10-13 00:16:31,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 490 transitions. [2021-10-13 00:16:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 302. [2021-10-13 00:16:31,884 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) [2021-10-13 00:16:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 428 transitions. [2021-10-13 00:16:31,885 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-13 00:16:31,885 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-13 00:16:31,885 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 00:16:31,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 428 transitions. [2021-10-13 00:16:31,888 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2021-10-13 00:16:31,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:31,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:31,891 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:31,892 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:31,892 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 [2021-10-13 00:16:31,894 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 [2021-10-13 00:16:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 5 times [2021-10-13 00:16:31,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:31,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915517240] [2021-10-13 00:16:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:31,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:31,922 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:31,953 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:31,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1570645289, now seen corresponding path program 1 times [2021-10-13 00:16:31,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:31,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110755270] [2021-10-13 00:16:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:31,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:32,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:32,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110755270] [2021-10-13 00:16:32,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110755270] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:32,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:32,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:32,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887381339] [2021-10-13 00:16:32,031 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:32,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:32,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:16:32,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:16:32,034 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) [2021-10-13 00:16:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:32,228 INFO L93 Difference]: Finished difference Result 457 states and 646 transitions. [2021-10-13 00:16:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:16:32,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 646 transitions. [2021-10-13 00:16:32,233 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 406 [2021-10-13 00:16:32,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 646 transitions. [2021-10-13 00:16:32,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2021-10-13 00:16:32,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2021-10-13 00:16:32,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 646 transitions. [2021-10-13 00:16:32,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:32,238 INFO L681 BuchiCegarLoop]: Abstraction has 457 states and 646 transitions. [2021-10-13 00:16:32,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 646 transitions. [2021-10-13 00:16:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 344. [2021-10-13 00:16:32,245 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) [2021-10-13 00:16:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 498 transitions. [2021-10-13 00:16:32,247 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-13 00:16:32,247 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-13 00:16:32,247 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 00:16:32,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 498 transitions. [2021-10-13 00:16:32,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-13 00:16:32,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:32,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:32,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:32,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:32,251 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 [2021-10-13 00:16:32,251 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 [2021-10-13 00:16:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 6 times [2021-10-13 00:16:32,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:32,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393156768] [2021-10-13 00:16:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:32,267 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:32,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:32,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:32,298 INFO L82 PathProgramCache]: Analyzing trace with hash 856847662, now seen corresponding path program 1 times [2021-10-13 00:16:32,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:32,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883354756] [2021-10-13 00:16:32,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:32,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:32,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883354756] [2021-10-13 00:16:32,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883354756] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:32,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:32,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:16:32,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541376171] [2021-10-13 00:16:32,351 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:32,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:32,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:16:32,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:16:32,352 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) [2021-10-13 00:16:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:32,436 INFO L93 Difference]: Finished difference Result 409 states and 582 transitions. [2021-10-13 00:16:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:16:32,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 582 transitions. [2021-10-13 00:16:32,440 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 373 [2021-10-13 00:16:32,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 409 states and 582 transitions. [2021-10-13 00:16:32,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 409 [2021-10-13 00:16:32,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 409 [2021-10-13 00:16:32,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 582 transitions. [2021-10-13 00:16:32,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:32,450 INFO L681 BuchiCegarLoop]: Abstraction has 409 states and 582 transitions. [2021-10-13 00:16:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 582 transitions. [2021-10-13 00:16:32,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 344. [2021-10-13 00:16:32,457 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) [2021-10-13 00:16:32,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 493 transitions. [2021-10-13 00:16:32,459 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-13 00:16:32,459 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-13 00:16:32,459 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-13 00:16:32,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 493 transitions. [2021-10-13 00:16:32,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-13 00:16:32,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:32,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:32,464 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:32,464 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] [2021-10-13 00:16:32,464 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 [2021-10-13 00:16:32,464 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 [2021-10-13 00:16:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:32,465 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 7 times [2021-10-13 00:16:32,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:32,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929600443] [2021-10-13 00:16:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:32,506 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:32,538 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:32,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:32,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1265935866, now seen corresponding path program 1 times [2021-10-13 00:16:32,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:32,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788206943] [2021-10-13 00:16:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-13 00:16:32,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:32,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788206943] [2021-10-13 00:16:32,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788206943] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:32,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:32,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:16:32,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876572991] [2021-10-13 00:16:32,576 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:32,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:32,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:16:32,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:16:32,577 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) [2021-10-13 00:16:32,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:32,664 INFO L93 Difference]: Finished difference Result 347 states and 478 transitions. [2021-10-13 00:16:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:16:32,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 478 transitions. [2021-10-13 00:16:32,668 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-13 00:16:32,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 347 states and 478 transitions. [2021-10-13 00:16:32,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-10-13 00:16:32,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-10-13 00:16:32,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 478 transitions. [2021-10-13 00:16:32,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:32,673 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 478 transitions. [2021-10-13 00:16:32,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 478 transitions. [2021-10-13 00:16:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 311. [2021-10-13 00:16:32,679 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) [2021-10-13 00:16:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 426 transitions. [2021-10-13 00:16:32,681 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-13 00:16:32,681 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-13 00:16:32,681 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-13 00:16:32,681 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 426 transitions. [2021-10-13 00:16:32,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 275 [2021-10-13 00:16:32,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:32,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:32,685 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:32,685 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] [2021-10-13 00:16:32,686 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 [2021-10-13 00:16:32,687 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 [2021-10-13 00:16:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:32,687 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 8 times [2021-10-13 00:16:32,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:32,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997456267] [2021-10-13 00:16:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:32,732 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:32,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:32,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:32,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1955946050, now seen corresponding path program 1 times [2021-10-13 00:16:32,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:32,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207193571] [2021-10-13 00:16:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:16:32,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:32,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207193571] [2021-10-13 00:16:32,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207193571] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:32,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589261032] [2021-10-13 00:16:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:32,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:32,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:32,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:32,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:16:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:32,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:16:32,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:16:32,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589261032] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:32,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:16:32,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-13 00:16:33,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406941840] [2021-10-13 00:16:33,001 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:33,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:16:33,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:16:33,002 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) [2021-10-13 00:16:33,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:33,621 INFO L93 Difference]: Finished difference Result 414 states and 525 transitions. [2021-10-13 00:16:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:16:33,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 525 transitions. [2021-10-13 00:16:33,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 373 [2021-10-13 00:16:33,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 414 states and 525 transitions. [2021-10-13 00:16:33,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 414 [2021-10-13 00:16:33,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 414 [2021-10-13 00:16:33,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 525 transitions. [2021-10-13 00:16:33,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:33,630 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 525 transitions. [2021-10-13 00:16:33,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 525 transitions. [2021-10-13 00:16:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-10-13 00:16:33,636 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) [2021-10-13 00:16:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2021-10-13 00:16:33,637 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-13 00:16:33,637 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-13 00:16:33,637 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-13 00:16:33,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 365 transitions. [2021-10-13 00:16:33,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 243 [2021-10-13 00:16:33,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:33,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:33,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:33,640 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] [2021-10-13 00:16:33,640 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 [2021-10-13 00:16:33,640 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 [2021-10-13 00:16:33,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:33,641 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 9 times [2021-10-13 00:16:33,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:33,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41785799] [2021-10-13 00:16:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:33,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:33,654 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:33,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:33,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:33,670 INFO L82 PathProgramCache]: Analyzing trace with hash -593187128, now seen corresponding path program 1 times [2021-10-13 00:16:33,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:33,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178672096] [2021-10-13 00:16:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:33,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:33,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:33,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178672096] [2021-10-13 00:16:33,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178672096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:33,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264605677] [2021-10-13 00:16:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:33,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:33,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:33,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:33,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:16:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:33,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:16:33,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 00:16:34,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264605677] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:34,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:16:34,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-10-13 00:16:34,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375324041] [2021-10-13 00:16:34,056 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:34,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:34,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:16:34,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:16:34,058 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) [2021-10-13 00:16:34,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:34,250 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2021-10-13 00:16:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:16:34,251 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 348 states and 433 transitions. [2021-10-13 00:16:34,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 312 [2021-10-13 00:16:34,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 348 states to 348 states and 433 transitions. [2021-10-13 00:16:34,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2021-10-13 00:16:34,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2021-10-13 00:16:34,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 433 transitions. [2021-10-13 00:16:34,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:34,258 INFO L681 BuchiCegarLoop]: Abstraction has 348 states and 433 transitions. [2021-10-13 00:16:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 433 transitions. [2021-10-13 00:16:34,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 292. [2021-10-13 00:16:34,263 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) [2021-10-13 00:16:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 370 transitions. [2021-10-13 00:16:34,264 INFO L704 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-13 00:16:34,264 INFO L587 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-13 00:16:34,264 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-13 00:16:34,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states and 370 transitions. [2021-10-13 00:16:34,266 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 256 [2021-10-13 00:16:34,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:34,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:34,269 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:34,269 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] [2021-10-13 00:16:34,269 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 [2021-10-13 00:16:34,270 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 [2021-10-13 00:16:34,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:34,270 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 10 times [2021-10-13 00:16:34,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:34,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236642631] [2021-10-13 00:16:34,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:34,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:34,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:34,312 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:34,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1797868163, now seen corresponding path program 1 times [2021-10-13 00:16:34,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:34,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933708406] [2021-10-13 00:16:34,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:34,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:34,392 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:16:34,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:34,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933708406] [2021-10-13 00:16:34,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933708406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:34,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:34,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:16:34,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368819952] [2021-10-13 00:16:34,393 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:34,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:34,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:16:34,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:16:34,394 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) [2021-10-13 00:16:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:34,720 INFO L93 Difference]: Finished difference Result 588 states and 723 transitions. [2021-10-13 00:16:34,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:16:34,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 588 states and 723 transitions. [2021-10-13 00:16:34,725 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2021-10-13 00:16:34,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 588 states to 579 states and 712 transitions. [2021-10-13 00:16:34,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2021-10-13 00:16:34,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2021-10-13 00:16:34,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 712 transitions. [2021-10-13 00:16:34,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:34,732 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 712 transitions. [2021-10-13 00:16:34,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 712 transitions. [2021-10-13 00:16:34,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 466. [2021-10-13 00:16:34,740 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) [2021-10-13 00:16:34,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 582 transitions. [2021-10-13 00:16:34,742 INFO L704 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-13 00:16:34,742 INFO L587 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-13 00:16:34,742 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-13 00:16:34,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 466 states and 582 transitions. [2021-10-13 00:16:34,745 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 392 [2021-10-13 00:16:34,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:34,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:34,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:34,746 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] [2021-10-13 00:16:34,747 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 [2021-10-13 00:16:34,747 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 [2021-10-13 00:16:34,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:34,747 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 11 times [2021-10-13 00:16:34,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:34,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894209590] [2021-10-13 00:16:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:34,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:34,761 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:34,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:34,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:34,777 INFO L82 PathProgramCache]: Analyzing trace with hash 302130057, now seen corresponding path program 1 times [2021-10-13 00:16:34,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:34,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823629580] [2021-10-13 00:16:34,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:34,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 00:16:34,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:34,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823629580] [2021-10-13 00:16:34,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823629580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:34,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979217038] [2021-10-13 00:16:34,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:34,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:34,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:34,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:34,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:16:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:34,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:16:34,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 00:16:35,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979217038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:35,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:16:35,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-13 00:16:35,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579329270] [2021-10-13 00:16:35,247 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:35,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:16:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:16:35,249 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) [2021-10-13 00:16:36,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:36,143 INFO L93 Difference]: Finished difference Result 963 states and 1187 transitions. [2021-10-13 00:16:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:16:36,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1187 transitions. [2021-10-13 00:16:36,151 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 804 [2021-10-13 00:16:36,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 961 states and 1185 transitions. [2021-10-13 00:16:36,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2021-10-13 00:16:36,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2021-10-13 00:16:36,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1185 transitions. [2021-10-13 00:16:36,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:36,162 INFO L681 BuchiCegarLoop]: Abstraction has 961 states and 1185 transitions. [2021-10-13 00:16:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1185 transitions. [2021-10-13 00:16:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 689. [2021-10-13 00:16:36,175 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) [2021-10-13 00:16:36,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 878 transitions. [2021-10-13 00:16:36,178 INFO L704 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-13 00:16:36,178 INFO L587 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-13 00:16:36,178 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-13 00:16:36,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 689 states and 878 transitions. [2021-10-13 00:16:36,182 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 615 [2021-10-13 00:16:36,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:36,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:36,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:36,183 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] [2021-10-13 00:16:36,183 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 [2021-10-13 00:16:36,183 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 [2021-10-13 00:16:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:36,184 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 12 times [2021-10-13 00:16:36,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:36,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868418374] [2021-10-13 00:16:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:36,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:36,198 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:36,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:36,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:36,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2112972027, now seen corresponding path program 1 times [2021-10-13 00:16:36,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:36,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386678075] [2021-10-13 00:16:36,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:36,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 19 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:36,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:36,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386678075] [2021-10-13 00:16:36,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386678075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:36,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104675095] [2021-10-13 00:16:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:36,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:36,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:36,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 00:16:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:36,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:16:36,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-13 00:16:36,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104675095] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:36,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:16:36,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-13 00:16:36,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223973816] [2021-10-13 00:16:36,717 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:36,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:36,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:16:36,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:16:36,719 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) [2021-10-13 00:16:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:36,982 INFO L93 Difference]: Finished difference Result 785 states and 918 transitions. [2021-10-13 00:16:36,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:16:36,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 785 states and 918 transitions. [2021-10-13 00:16:36,992 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 696 [2021-10-13 00:16:36,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 785 states to 738 states and 848 transitions. [2021-10-13 00:16:36,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 738 [2021-10-13 00:16:36,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 738 [2021-10-13 00:16:36,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 738 states and 848 transitions. [2021-10-13 00:16:37,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:37,000 INFO L681 BuchiCegarLoop]: Abstraction has 738 states and 848 transitions. [2021-10-13 00:16:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states and 848 transitions. [2021-10-13 00:16:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 601. [2021-10-13 00:16:37,011 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) [2021-10-13 00:16:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 707 transitions. [2021-10-13 00:16:37,013 INFO L704 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-13 00:16:37,013 INFO L587 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-13 00:16:37,013 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-13 00:16:37,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 601 states and 707 transitions. [2021-10-13 00:16:37,017 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-13 00:16:37,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:37,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:37,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:37,018 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] [2021-10-13 00:16:37,018 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 [2021-10-13 00:16:37,018 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 [2021-10-13 00:16:37,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:37,019 INFO L82 PathProgramCache]: Analyzing trace with hash -890288343, now seen corresponding path program 1 times [2021-10-13 00:16:37,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:37,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812268280] [2021-10-13 00:16:37,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:37,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:37,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:37,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812268280] [2021-10-13 00:16:37,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812268280] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:37,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:37,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 00:16:37,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104433436] [2021-10-13 00:16:37,105 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:16:37,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:37,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1197554810, now seen corresponding path program 1 times [2021-10-13 00:16:37,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:37,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635885472] [2021-10-13 00:16:37,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:37,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 24 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:37,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:37,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635885472] [2021-10-13 00:16:37,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635885472] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:37,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554421299] [2021-10-13 00:16:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:37,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:37,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:37,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:37,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 00:16:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:37,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:16:37,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 83 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-13 00:16:37,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554421299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:37,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:16:37,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2021-10-13 00:16:37,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699842406] [2021-10-13 00:16:37,997 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:37,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:37,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:16:37,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:16:37,998 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) [2021-10-13 00:16:38,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:38,577 INFO L93 Difference]: Finished difference Result 2371 states and 2782 transitions. [2021-10-13 00:16:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:16:38,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2371 states and 2782 transitions. [2021-10-13 00:16:38,597 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 2264 [2021-10-13 00:16:38,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2371 states to 2371 states and 2782 transitions. [2021-10-13 00:16:38,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2371 [2021-10-13 00:16:38,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2371 [2021-10-13 00:16:38,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2371 states and 2782 transitions. [2021-10-13 00:16:38,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:38,622 INFO L681 BuchiCegarLoop]: Abstraction has 2371 states and 2782 transitions. [2021-10-13 00:16:38,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states and 2782 transitions. [2021-10-13 00:16:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 593. [2021-10-13 00:16:38,644 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) [2021-10-13 00:16:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 698 transitions. [2021-10-13 00:16:38,646 INFO L704 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-13 00:16:38,646 INFO L587 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-13 00:16:38,646 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-13 00:16:38,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 593 states and 698 transitions. [2021-10-13 00:16:38,650 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-13 00:16:38,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:38,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:38,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:38,652 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] [2021-10-13 00:16:38,652 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 [2021-10-13 00:16:38,652 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 [2021-10-13 00:16:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:38,653 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 13 times [2021-10-13 00:16:38,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:38,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99923524] [2021-10-13 00:16:38,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:38,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:38,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:38,684 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:38,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:38,685 INFO L82 PathProgramCache]: Analyzing trace with hash -455989548, now seen corresponding path program 1 times [2021-10-13 00:16:38,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:38,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077491370] [2021-10-13 00:16:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:38,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 00:16:38,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:38,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077491370] [2021-10-13 00:16:38,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077491370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:38,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:38,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:16:38,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895545032] [2021-10-13 00:16:38,773 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:38,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:38,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:16:38,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:16:38,774 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) [2021-10-13 00:16:39,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:39,156 INFO L93 Difference]: Finished difference Result 836 states and 964 transitions. [2021-10-13 00:16:39,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:16:39,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 964 transitions. [2021-10-13 00:16:39,162 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 753 [2021-10-13 00:16:39,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 819 states and 945 transitions. [2021-10-13 00:16:39,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 819 [2021-10-13 00:16:39,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 819 [2021-10-13 00:16:39,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 819 states and 945 transitions. [2021-10-13 00:16:39,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:39,172 INFO L681 BuchiCegarLoop]: Abstraction has 819 states and 945 transitions. [2021-10-13 00:16:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states and 945 transitions. [2021-10-13 00:16:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 712. [2021-10-13 00:16:39,186 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) [2021-10-13 00:16:39,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 834 transitions. [2021-10-13 00:16:39,210 INFO L704 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-13 00:16:39,210 INFO L587 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-13 00:16:39,211 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-13 00:16:39,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 712 states and 834 transitions. [2021-10-13 00:16:39,215 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 685 [2021-10-13 00:16:39,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:39,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:39,216 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:39,216 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] [2021-10-13 00:16:39,216 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 [2021-10-13 00:16:39,216 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 [2021-10-13 00:16:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:39,217 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 14 times [2021-10-13 00:16:39,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:39,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479940155] [2021-10-13 00:16:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:39,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:39,232 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:39,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:39,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:39,246 INFO L82 PathProgramCache]: Analyzing trace with hash 733714482, now seen corresponding path program 2 times [2021-10-13 00:16:39,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:39,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313931561] [2021-10-13 00:16:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:39,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 00:16:39,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:39,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313931561] [2021-10-13 00:16:39,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313931561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:39,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:39,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 00:16:39,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854301169] [2021-10-13 00:16:39,353 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:16:39,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:39,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:16:39,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:16:39,354 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) [2021-10-13 00:16:39,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:39,836 INFO L93 Difference]: Finished difference Result 936 states and 1081 transitions. [2021-10-13 00:16:39,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:16:39,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 936 states and 1081 transitions. [2021-10-13 00:16:39,844 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 842 [2021-10-13 00:16:39,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 936 states to 918 states and 1062 transitions. [2021-10-13 00:16:39,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 918 [2021-10-13 00:16:39,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 918 [2021-10-13 00:16:39,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 918 states and 1062 transitions. [2021-10-13 00:16:39,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:39,854 INFO L681 BuchiCegarLoop]: Abstraction has 918 states and 1062 transitions. [2021-10-13 00:16:39,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states and 1062 transitions. [2021-10-13 00:16:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 829. [2021-10-13 00:16:39,871 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) [2021-10-13 00:16:39,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 970 transitions. [2021-10-13 00:16:39,874 INFO L704 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-13 00:16:39,874 INFO L587 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-13 00:16:39,874 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-13 00:16:39,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 829 states and 970 transitions. [2021-10-13 00:16:39,879 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 802 [2021-10-13 00:16:39,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:39,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:39,880 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:39,880 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] [2021-10-13 00:16:39,880 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 [2021-10-13 00:16:39,880 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 [2021-10-13 00:16:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:39,881 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 15 times [2021-10-13 00:16:39,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:39,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214291024] [2021-10-13 00:16:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:39,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:39,897 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:39,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:39,914 INFO L82 PathProgramCache]: Analyzing trace with hash -382324270, now seen corresponding path program 1 times [2021-10-13 00:16:39,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:39,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072241610] [2021-10-13 00:16:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:39,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:40,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:40,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072241610] [2021-10-13 00:16:40,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072241610] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:40,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858679351] [2021-10-13 00:16:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:40,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:40,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:40,020 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:40,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 00:16:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:40,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:16:40,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-13 00:17:05,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858679351] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:17:05,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:17:05,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-10-13 00:17:05,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445343793] [2021-10-13 00:17:05,520 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:17:05,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:17:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:17:05,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=69, Unknown=2, NotChecked=0, Total=90 [2021-10-13 00:17:05,521 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) [2021-10-13 00:18:34,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:18:34,174 INFO L93 Difference]: Finished difference Result 1188 states and 1357 transitions. [2021-10-13 00:18:34,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:18:34,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1188 states and 1357 transitions. [2021-10-13 00:18:34,184 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1147 [2021-10-13 00:18:34,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1188 states to 1174 states and 1333 transitions. [2021-10-13 00:18:34,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1174 [2021-10-13 00:18:34,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1174 [2021-10-13 00:18:34,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1174 states and 1333 transitions. [2021-10-13 00:18:34,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:18:34,198 INFO L681 BuchiCegarLoop]: Abstraction has 1174 states and 1333 transitions. [2021-10-13 00:18:34,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states and 1333 transitions. [2021-10-13 00:18:34,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1001. [2021-10-13 00:18:34,221 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) [2021-10-13 00:18:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1148 transitions. [2021-10-13 00:18:34,225 INFO L704 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-13 00:18:34,225 INFO L587 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-13 00:18:34,225 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-13 00:18:34,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1001 states and 1148 transitions. [2021-10-13 00:18:34,232 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 974 [2021-10-13 00:18:34,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:18:34,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:18:34,233 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:18:34,233 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] [2021-10-13 00:18:34,234 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 [2021-10-13 00:18:34,234 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 [2021-10-13 00:18:34,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:34,235 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 16 times [2021-10-13 00:18:34,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:34,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012309481] [2021-10-13 00:18:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:34,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:34,252 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:18:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:34,269 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:18:34,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:34,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1186296946, now seen corresponding path program 2 times [2021-10-13 00:18:34,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:34,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595816484] [2021-10-13 00:18:34,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:34,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 192 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-13 00:18:34,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:18:34,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595816484] [2021-10-13 00:18:34,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595816484] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:34,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177629134] [2021-10-13 00:18:34,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:18:34,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:18:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:34,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:18:34,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 00:18:34,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:18:34,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:18:34,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:18:34,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:18:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 103 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-10-13 00:18:36,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177629134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:36,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:18:36,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-13 00:18:36,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620834559] [2021-10-13 00:18:36,177 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:18:36,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:18:36,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 00:18:36,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:18:36,178 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) [2021-10-13 00:18:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:18:39,193 INFO L93 Difference]: Finished difference Result 755 states and 807 transitions. [2021-10-13 00:18:39,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:18:39,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 755 states and 807 transitions. [2021-10-13 00:18:39,197 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 112 [2021-10-13 00:18:39,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 755 states to 744 states and 791 transitions. [2021-10-13 00:18:39,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 744 [2021-10-13 00:18:39,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 744 [2021-10-13 00:18:39,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 744 states and 791 transitions. [2021-10-13 00:18:39,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:18:39,205 INFO L681 BuchiCegarLoop]: Abstraction has 744 states and 791 transitions. [2021-10-13 00:18:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states and 791 transitions. [2021-10-13 00:18:39,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 311. [2021-10-13 00:18:39,212 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) [2021-10-13 00:18:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2021-10-13 00:18:39,214 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-13 00:18:39,214 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-13 00:18:39,214 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-13 00:18:39,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 343 transitions. [2021-10-13 00:18:39,215 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 60 [2021-10-13 00:18:39,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:18:39,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:18:39,217 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] [2021-10-13 00:18:39,217 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:18:39,217 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 [2021-10-13 00:18:39,217 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 [2021-10-13 00:18:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:39,218 INFO L82 PathProgramCache]: Analyzing trace with hash -529922365, now seen corresponding path program 1 times [2021-10-13 00:18:39,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:39,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928004082] [2021-10-13 00:18:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:39,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-13 00:18:39,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:18:39,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928004082] [2021-10-13 00:18:39,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928004082] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:39,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836911496] [2021-10-13 00:18:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:39,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:18:39,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:39,410 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:18:39,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 00:18:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:39,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:18:39,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:18:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-13 00:18:40,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836911496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:40,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:18:40,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-13 00:18:40,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483277213] [2021-10-13 00:18:40,055 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:18:40,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:40,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-13 00:18:40,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:40,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440064520] [2021-10-13 00:18:40,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:40,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:40,064 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:18:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:40,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:18:40,363 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:18:40,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:18:40,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:18:40,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:18:40,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:18:40,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:40,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:18:40,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:18:40,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-13 00:18:40,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:18:40,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:18:40,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:40,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:40,757 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:18:40,757 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:18:40,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:40,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:40,761 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:40,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:18:40,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:18:40,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:40,798 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:18:40,798 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: [] [2021-10-13 00:18:40,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:40,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:40,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:40,855 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:40,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:18:40,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:40,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:18:40,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:40,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:40,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:40,946 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:40,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:18:40,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:18:40,947 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:41,625 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:18:41,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:41,632 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:18:41,633 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:18:41,633 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:18:41,633 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:18:41,633 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:18:41,633 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:41,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:18:41,633 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:18:41,633 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-13 00:18:41,633 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:18:41,633 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:18:41,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:41,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:42,063 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:18:42,067 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:18:42,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,074 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:18:42,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:18:42,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:18:42,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:18:42,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,162 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:18:42,163 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 [2021-10-13 00:18:42,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:18:42,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:18:42,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,202 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:18:42,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,203 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:18:42,223 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 [2021-10-13 00:18:42,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,232 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:42,235 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:42,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,260 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:18:42,265 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 [2021-10-13 00:18:42,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,273 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:42,277 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:42,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,307 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:18:42,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,308 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:18:42,310 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 [2021-10-13 00:18:42,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,318 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:42,320 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:42,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,350 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:18:42,364 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 [2021-10-13 00:18:42,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,372 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:42,378 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:42,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,403 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:18:42,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,409 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:18:42,425 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 [2021-10-13 00:18:42,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,434 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:42,440 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:42,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,503 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:18:42,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:42,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,518 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:42,525 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:42,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:18:42,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,588 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:18:42,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,589 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,601 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 [2021-10-13 00:18:42,612 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:42,612 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:42,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,613 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:42,616 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:42,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:18:42,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,669 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,675 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 [2021-10-13 00:18:42,685 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:42,686 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:42,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,686 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:42,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:18:42,718 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:42,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,781 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:18:42,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,782 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,788 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 [2021-10-13 00:18:42,798 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:42,798 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:18:42,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,799 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:42,805 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:42,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:18:42,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,860 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,872 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 [2021-10-13 00:18:42,881 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:42,882 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:18:42,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:18:42,882 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:42,891 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:42,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:42,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:42,943 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:18:42,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:42,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:42,944 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:42,947 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 [2021-10-13 00:18:42,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:18:42,959 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:42,959 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:42,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:42,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:42,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:42,960 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:42,971 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:42,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:42,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:43,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:43,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:43,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:43,036 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:43,043 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 [2021-10-13 00:18:43,053 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:43,053 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:43,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:43,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:43,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:43,054 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:43,067 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:43,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:43,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:18:43,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:43,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:43,136 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:18:43,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:43,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:43,137 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:43,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:18:43,140 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 [2021-10-13 00:18:43,149 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:43,149 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:43,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:43,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:43,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:43,150 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:43,153 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:43,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:43,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:43,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:43,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:43,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:43,216 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:43,222 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 [2021-10-13 00:18:43,234 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:43,235 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:43,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:43,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:43,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:43,235 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:43,242 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:43,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:43,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:18:43,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:43,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:43,296 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:18:43,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:43,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:43,297 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:43,301 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 [2021-10-13 00:18:43,310 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:43,310 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:43,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:43,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:43,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:43,311 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:18:43,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:18:43,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:43,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:18:43,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:43,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:43,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:43,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:43,370 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:43,372 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 [2021-10-13 00:18:43,384 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:43,384 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:43,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:43,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:43,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:43,385 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:18:43,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:18:43,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:43,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:18:43,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:43,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:43,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:18:43,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:18:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:18:43,473 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) [2021-10-13 00:18:44,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:18:44,141 INFO L93 Difference]: Finished difference Result 445 states and 473 transitions. [2021-10-13 00:18:44,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:18:44,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 473 transitions. [2021-10-13 00:18:44,145 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 94 [2021-10-13 00:18:44,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 390 states and 417 transitions. [2021-10-13 00:18:44,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2021-10-13 00:18:44,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2021-10-13 00:18:44,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 417 transitions. [2021-10-13 00:18:44,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:18:44,151 INFO L681 BuchiCegarLoop]: Abstraction has 390 states and 417 transitions. [2021-10-13 00:18:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 417 transitions. [2021-10-13 00:18:44,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 327. [2021-10-13 00:18:44,157 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) [2021-10-13 00:18:44,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 354 transitions. [2021-10-13 00:18:44,158 INFO L704 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-13 00:18:44,159 INFO L587 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-13 00:18:44,159 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-13 00:18:44,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states and 354 transitions. [2021-10-13 00:18:44,160 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-13 00:18:44,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:18:44,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:18:44,161 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] [2021-10-13 00:18:44,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:18:44,161 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 [2021-10-13 00:18:44,162 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 [2021-10-13 00:18:44,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:44,162 INFO L82 PathProgramCache]: Analyzing trace with hash -267040966, now seen corresponding path program 1 times [2021-10-13 00:18:44,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:44,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826081104] [2021-10-13 00:18:44,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:44,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-13 00:18:44,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:18:44,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826081104] [2021-10-13 00:18:44,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826081104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:44,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950294078] [2021-10-13 00:18:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:44,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:18:44,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:44,427 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:18:44,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 00:18:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:44,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 00:18:44,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:18:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:18:45,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950294078] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:45,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:18:45,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-13 00:18:45,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979885939] [2021-10-13 00:18:45,512 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:18:45,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:45,513 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-13 00:18:45,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:45,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324433877] [2021-10-13 00:18:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:45,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:45,524 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:18:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:45,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:18:45,808 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:18:45,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:18:45,809 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:18:45,809 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:18:45,809 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:18:45,809 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:45,809 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:18:45,809 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:18:45,809 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-13 00:18:45,809 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:18:45,809 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:18:45,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:45,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:46,297 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:18:46,297 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:18:46,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:46,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:46,307 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:46,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:18:46,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:46,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:18:46,339 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:18:46,339 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: [] [2021-10-13 00:18:46,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:46,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:46,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:46,384 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:46,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:18:46,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:46,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:18:46,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:46,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:46,451 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:46,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:18:46,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:18:46,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:48,345 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:18:48,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-13 00:18:48,349 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:18:48,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:18:48,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:18:48,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:18:48,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:18:48,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:18:48,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:18:48,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-13 00:18:48,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:18:48,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:18:48,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:48,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:48,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:18:48,698 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:18:48,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:48,700 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:48,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:18:48,702 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 [2021-10-13 00:18:48,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:48,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:48,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:48,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:48,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:18:48,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:18:48,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:48,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:48,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-13 00:18:48,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:48,745 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:48,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:18:48,747 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 [2021-10-13 00:18:48,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:48,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:48,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:48,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:48,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:18:48,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:18:48,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:48,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:48,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:48,811 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:18:48,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:48,812 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:48,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:18:48,816 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 [2021-10-13 00:18:48,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:48,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:48,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:48,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:48,824 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:48,825 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:48,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:48,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:48,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:48,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:48,848 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:48,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:18:48,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:18:48,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:48,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:48,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:48,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:48,856 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:48,859 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:48,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:48,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:48,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:48,882 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:18:48,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:48,883 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:48,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:18:48,885 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 [2021-10-13 00:18:48,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:48,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:48,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:48,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:48,893 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:48,896 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:48,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:48,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:48,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:48,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:48,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:48,953 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:48,968 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 [2021-10-13 00:18:48,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:48,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:48,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:48,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:48,978 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:48,983 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:48,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:48,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:18:49,006 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:49,040 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:18:49,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,041 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,047 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 [2021-10-13 00:18:49,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:18:49,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:49,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,056 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:49,059 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:49,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-13 00:18:49,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,095 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:18:49,097 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 [2021-10-13 00:18:49,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:49,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,105 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:49,110 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:49,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:49,157 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:18:49,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,158 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:18:49,161 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 [2021-10-13 00:18:49,169 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,169 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:49,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,170 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:49,172 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:49,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:49,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,202 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 00:18:49,204 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 [2021-10-13 00:18:49,213 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,213 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:49,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,213 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:49,218 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:49,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-13 00:18:49,259 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:18:49,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,260 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 00:18:49,264 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 [2021-10-13 00:18:49,271 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,271 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:18:49,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,271 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:49,276 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:49,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-13 00:18:49,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,304 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 00:18:49,307 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 [2021-10-13 00:18:49,316 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,316 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:18:49,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,317 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:49,326 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:49,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:49,366 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:18:49,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,367 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 00:18:49,368 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 [2021-10-13 00:18:49,377 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,377 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:49,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,377 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:49,388 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:49,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-13 00:18:49,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,419 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 00:18:49,421 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 [2021-10-13 00:18:49,428 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,428 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:49,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,429 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:49,435 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:49,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:49,470 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:18:49,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,471 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,472 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 [2021-10-13 00:18:49,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-13 00:18:49,481 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,481 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:49,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,482 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:49,485 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:49,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:49,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,513 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 00:18:49,514 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 [2021-10-13 00:18:49,522 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,522 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:49,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,523 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:49,528 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:49,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-13 00:18:49,560 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:18:49,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,561 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 00:18:49,562 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 [2021-10-13 00:18:49,571 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,572 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:49,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,572 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:18:49,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:18:49,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-13 00:18:49,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:49,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:49,602 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:49,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 00:18:49,603 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 [2021-10-13 00:18:49,611 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:49,611 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:49,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:49,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:49,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:49,611 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:18:49,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:18:49,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:49,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:49,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-13 00:18:49,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:18:49,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:18:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:18:49,649 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) [2021-10-13 00:18:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:18:51,861 INFO L93 Difference]: Finished difference Result 587 states and 628 transitions. [2021-10-13 00:18:51,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 00:18:51,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 628 transitions. [2021-10-13 00:18:51,872 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-10-13 00:18:51,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 587 states and 628 transitions. [2021-10-13 00:18:51,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2021-10-13 00:18:51,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2021-10-13 00:18:51,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 628 transitions. [2021-10-13 00:18:51,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:18:51,879 INFO L681 BuchiCegarLoop]: Abstraction has 587 states and 628 transitions. [2021-10-13 00:18:51,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 628 transitions. [2021-10-13 00:18:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 313. [2021-10-13 00:18:51,889 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) [2021-10-13 00:18:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 337 transitions. [2021-10-13 00:18:51,891 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-13 00:18:51,891 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-13 00:18:51,891 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-13 00:18:51,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 337 transitions. [2021-10-13 00:18:51,893 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-13 00:18:51,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:18:51,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:18:51,894 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] [2021-10-13 00:18:51,894 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:18:51,894 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 [2021-10-13 00:18:51,895 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 [2021-10-13 00:18:51,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:51,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-10-13 00:18:51,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:51,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583298082] [2021-10-13 00:18:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:51,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:51,934 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:18:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:51,990 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:18:51,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:51,991 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-13 00:18:51,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:51,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701985590] [2021-10-13 00:18:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:51,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:52,000 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:18:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:18:52,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:18:52,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:52,007 INFO L82 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-10-13 00:18:52,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:52,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124418335] [2021-10-13 00:18:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:52,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:18:52,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:18:52,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124418335] [2021-10-13 00:18:52,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124418335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:52,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142149824] [2021-10-13 00:18:52,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:18:52,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:18:52,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:52,323 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:18:52,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-13 00:18:52,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:18:52,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:18:52,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:18:52,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:18:53,796 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-13 00:18:53,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142149824] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:53,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:18:53,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-13 00:18:53,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781816821] [2021-10-13 00:18:54,023 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:18:54,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:18:54,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:18:54,024 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:18:54,024 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:18:54,024 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:54,024 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:18:54,024 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:18:54,024 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-13 00:18:54,024 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:18:54,024 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:18:54,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:54,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:54,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:18:54,492 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:18:54,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:54,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:54,494 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:54,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 00:18:54,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:18:54,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:54,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:54,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:54,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:54,558 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:54,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 00:18:54,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:18:54,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:18:55,450 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:18:55,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:55,454 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:18:55,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:18:55,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:18:55,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:18:55,454 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:18:55,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:55,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:18:55,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:18:55,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-13 00:18:55,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:18:55,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:18:55,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:55,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:18:55,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:18:55,814 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:18:55,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:55,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:55,815 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:55,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 00:18:55,816 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 [2021-10-13 00:18:55,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:55,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:55,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:55,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:55,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:18:55,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:18:55,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:55,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:55,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:55,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:55,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:55,857 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:55,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 00:18:55,859 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 [2021-10-13 00:18:55,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:55,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:55,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:55,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:55,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:18:55,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:18:55,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:55,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:55,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-13 00:18:55,896 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:18:55,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:55,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:55,897 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:55,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 00:18:55,898 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 [2021-10-13 00:18:55,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:55,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:55,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:55,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:55,907 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:55,911 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:55,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:55,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:55,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:55,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:55,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:55,939 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:55,942 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 [2021-10-13 00:18:55,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 00:18:55,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:55,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:55,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:55,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:55,951 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:55,952 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:55,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:55,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:55,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:55,975 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:18:55,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:55,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:55,976 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:55,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 00:18:55,977 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 [2021-10-13 00:18:55,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:55,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:55,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:55,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:55,985 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:55,989 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:55,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:55,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-13 00:18:56,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,014 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 00:18:56,015 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 [2021-10-13 00:18:56,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:56,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,023 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:56,025 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:56,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,048 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:18:56,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,048 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 00:18:56,050 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 [2021-10-13 00:18:56,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:56,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,058 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:56,062 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:56,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,088 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 00:18:56,089 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 [2021-10-13 00:18:56,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:18:56,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,097 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:56,100 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:56,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,162 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:18:56,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,171 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,175 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 [2021-10-13 00:18:56,187 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,187 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:56,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,187 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:56,192 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:56,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 00:18:56,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,254 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 00:18:56,255 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 [2021-10-13 00:18:56,265 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,265 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:56,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,265 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:18:56,267 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:18:56,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,301 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:18:56,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,302 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 00:18:56,303 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 [2021-10-13 00:18:56,312 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,312 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:18:56,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,313 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:56,318 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:56,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,350 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 00:18:56,352 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 [2021-10-13 00:18:56,360 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,360 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:18:56,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,360 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:56,363 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:56,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,393 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:18:56,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,394 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:18:56,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 00:18:56,435 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,435 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:56,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,435 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:56,444 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:56,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,513 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,519 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 [2021-10-13 00:18:56,531 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,531 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:56,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,532 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:18:56,537 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:18:56,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-13 00:18:56,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,603 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:18:56,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,607 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,609 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 [2021-10-13 00:18:56,620 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,620 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:56,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,620 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:56,625 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:56,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-13 00:18:56,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,691 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,695 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 [2021-10-13 00:18:56,705 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,705 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:18:56,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,706 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:18:56,708 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:18:56,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-13 00:18:56,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,769 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:18:56,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,770 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,772 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 [2021-10-13 00:18:56,784 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,784 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:56,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,784 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:18:56,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:18:56,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-13 00:18:56,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:18:56,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:56,852 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:18:56,853 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 [2021-10-13 00:18:56,863 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:18:56,863 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:18:56,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:18:56,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:18:56,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:18:56,863 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:18:56,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:18:56,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:18:56,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-13 00:18:56,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:18:56,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-13 00:18:56,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:18:56,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 00:18:56,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:18:56,924 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) [2021-10-13 00:18:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:18:58,715 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2021-10-13 00:18:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:18:58,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 298 transitions. [2021-10-13 00:18:58,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:18:58,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 177 states and 189 transitions. [2021-10-13 00:18:58,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-13 00:18:58,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-13 00:18:58,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 189 transitions. [2021-10-13 00:18:58,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:18:58,722 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 189 transitions. [2021-10-13 00:18:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 189 transitions. [2021-10-13 00:18:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 122. [2021-10-13 00:18:58,725 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) [2021-10-13 00:18:58,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-13 00:18:58,726 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-13 00:18:58,726 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-13 00:18:58,726 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-13 00:18:58,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 133 transitions. [2021-10-13 00:18:58,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:18:58,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:18:58,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:18:58,731 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] [2021-10-13 00:18:58,731 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:18:58,731 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 [2021-10-13 00:18:58,732 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 [2021-10-13 00:18:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:18:58,732 INFO L82 PathProgramCache]: Analyzing trace with hash 544159432, now seen corresponding path program 1 times [2021-10-13 00:18:58,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:18:58,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990486301] [2021-10-13 00:18:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:58,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:18:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 31 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 00:18:59,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:18:59,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990486301] [2021-10-13 00:18:59,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990486301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:18:59,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471344124] [2021-10-13 00:18:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:18:59,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:18:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:18:59,093 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:18:59,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-13 00:18:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:18:59,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:18:59,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-13 00:19:00,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471344124] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:00,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:19:00,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 13 [2021-10-13 00:19:00,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462108034] [2021-10-13 00:19:00,845 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:19:00,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:00,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-13 00:19:00,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:00,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584541689] [2021-10-13 00:19:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:00,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:00,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:00,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:01,145 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:01,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:01,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:01,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:01,146 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:19:01,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:01,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:01,146 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:01,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-13 00:19:01,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:01,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:01,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:01,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:01,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:01,642 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:19:01,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:01,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:01,643 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:01,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-13 00:19:01,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:01,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:01,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:01,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:01,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:01,713 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:01,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-13 00:19:01,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:19:01,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:03,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:19:03,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:03,708 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:03,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:03,708 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:03,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:03,709 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:03,709 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:03,709 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:03,709 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:03,709 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-13 00:19:03,709 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:03,709 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:03,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:03,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:04,114 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:04,114 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:04,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,115 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-13 00:19:04,117 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 [2021-10-13 00:19:04,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:04,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:04,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,149 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-13 00:19:04,150 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 [2021-10-13 00:19:04,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:04,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:04,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-13 00:19:04,184 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:19:04,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,185 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-13 00:19:04,186 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 [2021-10-13 00:19:04,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,195 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:04,196 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:04,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-13 00:19:04,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,219 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-13 00:19:04,220 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 [2021-10-13 00:19:04,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,227 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:04,230 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:04,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-13 00:19:04,252 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:19:04,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,254 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-13 00:19:04,255 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 [2021-10-13 00:19:04,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,263 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:04,265 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:04,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-13 00:19:04,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,287 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-13 00:19:04,289 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 [2021-10-13 00:19:04,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,296 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:04,299 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:04,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,323 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:19:04,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,324 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-13 00:19:04,325 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 [2021-10-13 00:19:04,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,333 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:04,335 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:04,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,399 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,401 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 [2021-10-13 00:19:04,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:04,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,411 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:04,416 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:04,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-13 00:19:04,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,463 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:19:04,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,467 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,475 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 [2021-10-13 00:19:04,484 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,484 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:04,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,485 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:04,487 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:04,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-13 00:19:04,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,540 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,542 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 [2021-10-13 00:19:04,553 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,553 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:04,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,553 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:04,558 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:04,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-13 00:19:04,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,609 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:19:04,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,610 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,612 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 [2021-10-13 00:19:04,622 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,622 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:04,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,622 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:04,625 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:04,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-13 00:19:04,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,671 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,673 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 [2021-10-13 00:19:04,684 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,684 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:04,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,685 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:04,693 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:04,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-13 00:19:04,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,755 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:19:04,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,759 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,760 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 [2021-10-13 00:19:04,770 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,770 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:04,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,771 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:04,774 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:04,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-13 00:19:04,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,822 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,824 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 [2021-10-13 00:19:04,833 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,833 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:04,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,834 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:04,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-13 00:19:04,842 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:04,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,905 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:19:04,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,906 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-13 00:19:04,907 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 [2021-10-13 00:19:04,916 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,916 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:04,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,916 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:04,918 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:04,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-10-13 00:19:04,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,952 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-13 00:19:04,953 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 [2021-10-13 00:19:04,961 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:04,961 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:04,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:04,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:04,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:04,962 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:04,965 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:04,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:04,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:04,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:04,993 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:19:04,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:04,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:04,994 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:04,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-13 00:19:04,995 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 [2021-10-13 00:19:05,002 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:05,002 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:05,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:05,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:05,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:05,002 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:05,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:05,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:05,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:05,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-13 00:19:05,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:05,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:05,041 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:05,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-13 00:19:05,042 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 [2021-10-13 00:19:05,049 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:05,049 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:05,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:05,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:05,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:05,049 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:05,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:05,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:05,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:05,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-10-13 00:19:05,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:05,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 00:19:05,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:19:05,084 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) [2021-10-13 00:19:06,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:06,272 INFO L93 Difference]: Finished difference Result 317 states and 339 transitions. [2021-10-13 00:19:06,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:19:06,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 339 transitions. [2021-10-13 00:19:06,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2021-10-13 00:19:06,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 200 states and 216 transitions. [2021-10-13 00:19:06,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-10-13 00:19:06,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-10-13 00:19:06,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 216 transitions. [2021-10-13 00:19:06,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:06,277 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 216 transitions. [2021-10-13 00:19:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 216 transitions. [2021-10-13 00:19:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 122. [2021-10-13 00:19:06,280 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) [2021-10-13 00:19:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-13 00:19:06,281 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-13 00:19:06,281 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-13 00:19:06,281 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-13 00:19:06,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 132 transitions. [2021-10-13 00:19:06,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:19:06,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:06,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:06,283 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] [2021-10-13 00:19:06,284 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:06,284 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 [2021-10-13 00:19:06,284 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 [2021-10-13 00:19:06,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:06,285 INFO L82 PathProgramCache]: Analyzing trace with hash -820936562, now seen corresponding path program 1 times [2021-10-13 00:19:06,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:06,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055140710] [2021-10-13 00:19:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:06,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:19:06,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:06,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055140710] [2021-10-13 00:19:06,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055140710] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:06,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586288620] [2021-10-13 00:19:06,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:06,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:19:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:06,535 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:19:06,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-13 00:19:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:06,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:19:06,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-13 00:19:07,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586288620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:07,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:19:07,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-13 00:19:07,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809525600] [2021-10-13 00:19:07,851 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:19:07,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:07,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-10-13 00:19:07,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:07,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939509365] [2021-10-13 00:19:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:07,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:07,859 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:07,863 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:08,113 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:08,114 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:08,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:08,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:08,114 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:19:08,114 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:08,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:08,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:08,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-13 00:19:08,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:08,114 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:08,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:08,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:08,526 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:08,526 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:19:08,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:08,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:08,529 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:08,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-13 00:19:08,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:08,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:08,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:08,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:08,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:08,589 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:08,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-13 00:19:08,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:19:08,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:10,092 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:19:10,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-10-13 00:19:10,095 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:10,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:10,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:10,096 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:10,096 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:10,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:10,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:10,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-13 00:19:10,096 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:10,096 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:10,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:10,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:10,436 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:10,437 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:10,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,438 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-13 00:19:10,441 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 [2021-10-13 00:19:10,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:10,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:10,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-10-13 00:19:10,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,478 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-13 00:19:10,479 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 [2021-10-13 00:19:10,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:10,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:10,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,511 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:19:10,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,512 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-13 00:19:10,513 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 [2021-10-13 00:19:10,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,520 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:10,522 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:10,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,546 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-13 00:19:10,547 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 [2021-10-13 00:19:10,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,554 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:10,556 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:10,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-10-13 00:19:10,577 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:19:10,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,578 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-13 00:19:10,579 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 [2021-10-13 00:19:10,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,586 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:10,590 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:10,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-13 00:19:10,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,619 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-13 00:19:10,620 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 [2021-10-13 00:19:10,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,627 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:10,629 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:10,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,654 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:19:10,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,655 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-13 00:19:10,656 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 [2021-10-13 00:19:10,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,665 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:10,669 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:10,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,696 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-13 00:19:10,697 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 [2021-10-13 00:19:10,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:10,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,705 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:10,707 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:10,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,729 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:19:10,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,730 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-13 00:19:10,747 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 [2021-10-13 00:19:10,757 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:10,757 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:10,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,757 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:10,764 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:10,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,824 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,826 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 [2021-10-13 00:19:10,835 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:10,835 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:10,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,835 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:10,837 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:10,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-13 00:19:10,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,885 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:19:10,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,887 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,891 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 [2021-10-13 00:19:10,902 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:10,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-13 00:19:10,902 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:10,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,903 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:10,908 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:10,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:10,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:10,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:10,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:10,969 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:10,975 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 [2021-10-13 00:19:10,984 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:10,984 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:10,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:10,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:10,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:10,984 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:10,987 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:10,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:10,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-13 00:19:11,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:11,033 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:19:11,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:11,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:11,034 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:11,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-13 00:19:11,038 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 [2021-10-13 00:19:11,046 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:11,046 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:11,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:11,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:11,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:11,046 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:11,057 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:11,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:11,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:11,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:11,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:11,093 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:11,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-13 00:19:11,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:11,101 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:11,101 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:11,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:11,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:11,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:11,101 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:11,105 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:11,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:11,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-13 00:19:11,151 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:19:11,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:11,152 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:11,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-13 00:19:11,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:11,160 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:11,160 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:11,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:11,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:11,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:11,161 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:11,164 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:11,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:11,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-13 00:19:11,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:11,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:11,190 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:11,209 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 [2021-10-13 00:19:11,218 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:11,219 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:11,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:11,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:11,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:11,219 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:11,221 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:11,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:11,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-13 00:19:11,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:11,272 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:19:11,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:11,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:11,273 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:11,279 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 [2021-10-13 00:19:11,291 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:11,291 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:11,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:11,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:11,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:11,292 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:11,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-13 00:19:11,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:11,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:11,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:11,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:11,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:11,356 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:11,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:11,368 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:11,368 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:11,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:11,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:11,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:11,368 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:11,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:11,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:11,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-13 00:19:11,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:11,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:11,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:11,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 00:19:11,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:19:11,422 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) [2021-10-13 00:19:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:13,017 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2021-10-13 00:19:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 00:19:13,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 162 transitions. [2021-10-13 00:19:13,019 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:19:13,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 120 states and 125 transitions. [2021-10-13 00:19:13,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-13 00:19:13,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-13 00:19:13,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 125 transitions. [2021-10-13 00:19:13,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:13,021 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 125 transitions. [2021-10-13 00:19:13,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 125 transitions. [2021-10-13 00:19:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-10-13 00:19:13,024 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) [2021-10-13 00:19:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2021-10-13 00:19:13,025 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-13 00:19:13,025 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-13 00:19:13,025 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-13 00:19:13,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 119 transitions. [2021-10-13 00:19:13,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:19:13,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:13,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:13,027 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] [2021-10-13 00:19:13,027 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:13,027 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 [2021-10-13 00:19:13,027 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 [2021-10-13 00:19:13,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:13,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1140638096, now seen corresponding path program 1 times [2021-10-13 00:19:13,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:13,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652763913] [2021-10-13 00:19:13,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:13,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 00:19:13,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:13,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652763913] [2021-10-13 00:19:13,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652763913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:13,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615192849] [2021-10-13 00:19:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:13,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:19:13,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:13,283 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:19:13,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-13 00:19:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:13,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 00:19:13,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:14,243 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 00:19:14,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615192849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:14,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:19:14,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 00:19:14,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434595901] [2021-10-13 00:19:14,244 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:19:14,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:14,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 4 times [2021-10-13 00:19:14,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:14,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803068829] [2021-10-13 00:19:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:14,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:14,252 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:14,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:14,516 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:14,516 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:14,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:14,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:14,516 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:19:14,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:14,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:14,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:14,516 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-13 00:19:14,517 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:14,517 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:14,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:14,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:14,941 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:14,941 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:19:14,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:14,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:14,946 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:14,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:14,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:14,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-13 00:19:15,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:15,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:15,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:15,042 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:15,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-13 00:19:15,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:19:15,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:16,703 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:19:16,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:16,706 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:16,706 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:16,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:16,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:16,707 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:16,707 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:16,707 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:16,707 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:16,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-13 00:19:16,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:16,707 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:16,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:16,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:17,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:17,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:17,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,043 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-13 00:19:17,044 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 [2021-10-13 00:19:17,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:17,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:17,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,083 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-13 00:19:17,089 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 [2021-10-13 00:19:17,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:17,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:17,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-10-13 00:19:17,119 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:19:17,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,119 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-13 00:19:17,121 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 [2021-10-13 00:19:17,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,129 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:17,131 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:17,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-13 00:19:17,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,157 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-13 00:19:17,159 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 [2021-10-13 00:19:17,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,166 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:17,168 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:17,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-10-13 00:19:17,189 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:19:17,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,190 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-13 00:19:17,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:17,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,199 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:17,202 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:17,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,226 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,228 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 [2021-10-13 00:19:17,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-13 00:19:17,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,236 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:17,237 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:17,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2021-10-13 00:19:17,261 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:19:17,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,261 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-13 00:19:17,262 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 [2021-10-13 00:19:17,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,270 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:17,275 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:17,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,307 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,309 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 [2021-10-13 00:19:17,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-13 00:19:17,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:17,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,317 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:17,319 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:17,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-10-13 00:19:17,341 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:19:17,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,342 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-13 00:19:17,345 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 [2021-10-13 00:19:17,352 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,352 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:17,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,352 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:17,355 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:17,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2021-10-13 00:19:17,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,381 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-13 00:19:17,383 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 [2021-10-13 00:19:17,390 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,390 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:17,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,390 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:17,392 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:17,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,417 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:19:17,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,418 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-13 00:19:17,419 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 [2021-10-13 00:19:17,428 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,428 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:17,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,428 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:17,432 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:17,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Ended with exit code 0 [2021-10-13 00:19:17,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,468 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-13 00:19:17,474 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 [2021-10-13 00:19:17,482 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,482 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:17,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,482 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:17,484 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:17,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Ended with exit code 0 [2021-10-13 00:19:17,517 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:19:17,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,518 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-13 00:19:17,519 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 [2021-10-13 00:19:17,527 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,527 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:17,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,528 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:17,533 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:17,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,568 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-13 00:19:17,569 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 [2021-10-13 00:19:17,577 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,577 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:17,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,577 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:17,580 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:17,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Ended with exit code 0 [2021-10-13 00:19:17,608 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:19:17,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,609 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-13 00:19:17,610 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 [2021-10-13 00:19:17,617 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,617 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:17,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,617 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:17,621 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:17,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,647 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-13 00:19:17,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:17,655 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,655 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:17,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,655 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:17,657 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:17,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,680 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:19:17,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,681 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-13 00:19:17,682 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 [2021-10-13 00:19:17,690 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,690 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:17,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,690 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:17,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:17,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Ended with exit code 0 [2021-10-13 00:19:17,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:17,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:17,726 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:17,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-13 00:19:17,746 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 [2021-10-13 00:19:17,754 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:17,754 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:17,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:17,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:17,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:17,754 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:17,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:17,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:17,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:17,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:17,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:19:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:19:17,782 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) [2021-10-13 00:19:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:17,979 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2021-10-13 00:19:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:19:17,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2021-10-13 00:19:17,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:19:17,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 108 states and 110 transitions. [2021-10-13 00:19:17,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2021-10-13 00:19:17,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2021-10-13 00:19:17,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 110 transitions. [2021-10-13 00:19:17,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:17,982 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 110 transitions. [2021-10-13 00:19:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 110 transitions. [2021-10-13 00:19:17,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2021-10-13 00:19:17,984 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) [2021-10-13 00:19:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2021-10-13 00:19:17,985 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-13 00:19:17,985 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-13 00:19:17,985 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-13 00:19:17,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 82 transitions. [2021-10-13 00:19:17,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:19:17,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:19:17,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:19:17,987 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] [2021-10-13 00:19:17,987 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:19:17,987 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 [2021-10-13 00:19:18,010 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 [2021-10-13 00:19:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:18,011 INFO L82 PathProgramCache]: Analyzing trace with hash -151906736, now seen corresponding path program 1 times [2021-10-13 00:19:18,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:18,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688421413] [2021-10-13 00:19:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:18,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:18,041 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:18,081 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:18,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:18,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 5 times [2021-10-13 00:19:18,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:18,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369941856] [2021-10-13 00:19:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:18,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:18,090 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:19:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:19:18,093 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:19:18,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:19:18,094 INFO L82 PathProgramCache]: Analyzing trace with hash -611234983, now seen corresponding path program 1 times [2021-10-13 00:19:18,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:19:18,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203156] [2021-10-13 00:19:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:18,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:19:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 83 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-13 00:19:18,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:19:18,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203156] [2021-10-13 00:19:18,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203156] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:18,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764301808] [2021-10-13 00:19:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:19:18,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:19:18,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:18,355 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:19:18,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2021-10-13 00:19:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:19:18,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:19:18,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:19:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-13 00:19:19,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764301808] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:19:19,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:19:19,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-10-13 00:19:19,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042880788] [2021-10-13 00:19:19,584 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:19,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:19,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:19,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:19,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:19:19,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:19,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:19,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:19,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-13 00:19:19,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:19,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:19,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:19,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:20,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:20,010 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:19:20,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:20,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:20,011 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:20,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-13 00:19:20,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:20,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:20,030 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:19:20,030 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: [] [2021-10-13 00:19:20,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Ended with exit code 0 [2021-10-13 00:19:20,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:20,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:20,055 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:20,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-13 00:19:20,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:19:20,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:20,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Ended with exit code 0 [2021-10-13 00:19:20,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:20,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:20,129 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:20,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-13 00:19:20,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:19:20,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:19:22,562 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:19:22,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Ended with exit code 0 [2021-10-13 00:19:22,566 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:19:22,566 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:19:22,566 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:19:22,566 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:19:22,566 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:19:22,566 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:22,566 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:19:22,566 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:19:22,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-13 00:19:22,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:19:22,566 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:19:22,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:22,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:19:22,929 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:19:22,929 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:19:22,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:22,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:22,930 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:22,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-13 00:19:22,932 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 [2021-10-13 00:19:22,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:22,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:22,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:22,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:22,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:22,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:22,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:22,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:22,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:22,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:22,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:22,971 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:22,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-13 00:19:22,972 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 [2021-10-13 00:19:22,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:22,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:22,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:22,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:22,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:19:22,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:19:22,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:22,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-10-13 00:19:23,007 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:19:23,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,008 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-13 00:19:23,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:23,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:23,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,019 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:23,022 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:23,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Ended with exit code 0 [2021-10-13 00:19:23,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,057 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-13 00:19:23,058 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 [2021-10-13 00:19:23,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:23,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,067 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:23,068 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:23,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Ended with exit code 0 [2021-10-13 00:19:23,095 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:19:23,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,097 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-13 00:19:23,098 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 [2021-10-13 00:19:23,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:23,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,110 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:23,114 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:23,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:23,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,147 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-13 00:19:23,149 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 [2021-10-13 00:19:23,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:23,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,158 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:23,160 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:23,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-10-13 00:19:23,184 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:19:23,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,185 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-13 00:19:23,186 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 [2021-10-13 00:19:23,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:23,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,195 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:23,200 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:23,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:23,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,233 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-13 00:19:23,234 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 [2021-10-13 00:19:23,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:19:23,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,243 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:23,246 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:23,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Ended with exit code 0 [2021-10-13 00:19:23,275 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:19:23,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,275 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-13 00:19:23,276 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 [2021-10-13 00:19:23,284 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,284 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:23,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,284 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:23,287 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:23,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-13 00:19:23,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,318 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-13 00:19:23,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:19:23,327 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,327 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:23,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,327 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:19:23,329 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:19:23,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-13 00:19:23,356 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:19:23,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,357 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-13 00:19:23,359 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 [2021-10-13 00:19:23,367 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,367 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:23,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,367 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:23,371 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:23,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Ended with exit code 0 [2021-10-13 00:19:23,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,402 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-13 00:19:23,403 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 [2021-10-13 00:19:23,411 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,411 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:19:23,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,411 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:23,423 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:23,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:23,451 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:19:23,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,452 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-13 00:19:23,453 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 [2021-10-13 00:19:23,462 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,462 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:23,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,463 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:23,468 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:23,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Ended with exit code 0 [2021-10-13 00:19:23,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,510 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-13 00:19:23,512 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 [2021-10-13 00:19:23,521 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,521 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:23,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,521 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:19:23,525 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:19:23,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Ended with exit code 0 [2021-10-13 00:19:23,559 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:19:23,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,560 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-13 00:19:23,561 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 [2021-10-13 00:19:23,568 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,569 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:23,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,569 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:23,573 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:23,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:23,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,599 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-13 00:19:23,600 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 [2021-10-13 00:19:23,607 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,607 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:19:23,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,608 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:19:23,609 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:19:23,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Ended with exit code 0 [2021-10-13 00:19:23,633 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:19:23,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,634 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-13 00:19:23,635 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 [2021-10-13 00:19:23,644 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,644 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:23,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,645 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:23,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:23,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:23,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:19:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:19:23,683 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:19:23,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-13 00:19:23,684 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 [2021-10-13 00:19:23,692 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:19:23,692 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:19:23,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:19:23,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:19:23,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:19:23,693 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:19:23,697 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:19:23,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:19:23,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:19:23,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Ended with exit code 0 [2021-10-13 00:19:23,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:19:23,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:19:23,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:19:23,749 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) [2021-10-13 00:19:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:19:24,647 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2021-10-13 00:19:24,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:19:24,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 72 transitions. [2021-10-13 00:19:24,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:19:24,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 0 states and 0 transitions. [2021-10-13 00:19:24,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:19:24,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:19:24,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:19:24,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:19:24,648 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:19:24,648 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:19:24,648 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:19:24,648 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-13 00:19:24,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:19:24,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:19:24,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:19:24,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:19:24 BoogieIcfgContainer [2021-10-13 00:19:24,661 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:19:24,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:19:24,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:19:24,662 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:19:24,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:16:26" (3/4) ... [2021-10-13 00:19:24,665 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:19:24,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:19:24,667 INFO L168 Benchmark]: Toolchain (without parser) took 178959.81 ms. Allocated memory was 102.8 MB in the beginning and 251.7 MB in the end (delta: 148.9 MB). Free memory was 71.5 MB in the beginning and 83.6 MB in the end (delta: -12.0 MB). Peak memory consumption was 137.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:24,667 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 55.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:19:24,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.22 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 71.3 MB in the beginning and 107.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:24,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.14 ms. Allocated memory is still 134.2 MB. Free memory was 107.2 MB in the beginning and 105.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:24,669 INFO L168 Benchmark]: Boogie Preprocessor took 53.40 ms. Allocated memory is still 134.2 MB. Free memory was 105.5 MB in the beginning and 104.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:24,669 INFO L168 Benchmark]: RCFGBuilder took 446.29 ms. Allocated memory is still 134.2 MB. Free memory was 103.9 MB in the beginning and 91.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:24,670 INFO L168 Benchmark]: BuchiAutomizer took 178074.52 ms. Allocated memory was 134.2 MB in the beginning and 251.7 MB in the end (delta: 117.4 MB). Free memory was 91.7 MB in the beginning and 83.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 167.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:24,670 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 251.7 MB. Free memory is still 83.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:19:24,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 55.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.22 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 71.3 MB in the beginning and 107.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.14 ms. Allocated memory is still 134.2 MB. Free memory was 107.2 MB in the beginning and 105.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.40 ms. Allocated memory is still 134.2 MB. Free memory was 105.5 MB in the beginning and 104.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 446.29 ms. Allocated memory is still 134.2 MB. Free memory was 103.9 MB in the beginning and 91.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 178074.52 ms. Allocated memory was 134.2 MB in the beginning and 251.7 MB in the end (delta: 117.4 MB). Free memory was 91.7 MB in the beginning and 83.6 MB in the end (delta: 8.2 MB). Peak memory consumption was 167.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.61 ms. Allocated memory is still 251.7 MB. Free memory is still 83.6 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 177.9s and 32 iterations. TraceHistogramMax:7. Analysis of lassos took 70.4s. Construction of modules took 97.8s. Büchi inclusion checks took 8.7s. Highest rank in rank-based complementation 0. Minimization of det autom 31. Minimization of nondet autom 0. Automata minimization 361.0ms AutomataMinimizationTime, 30 MinimizatonAttempts, 4534 StatesRemovedByMinimization, 29 NontrivialMinimizations. Non-live state removal took 0.2s 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, 8608 SolverSat, 552 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 97870.3ms 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: 33ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 11.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:19:24,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Ended with exit code 0 [2021-10-13 00:19:24,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:25,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-13 00:19:25,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-13 00:19:25,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:25,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-13 00:19:25,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-13 00:19:26,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-13 00:19:26,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:26,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-13 00:19:26,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:26,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-13 00:19:27,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-13 00:19:27,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:27,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:19:27,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f07c29b-72e6-4c8d-9a47-1134a89d2f3b/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...