./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_2-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer --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 0ce8ca4e0deac77c67f93865fe9306c44a834585 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:42:32,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:42:32,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:42:32,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:42:32,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:42:32,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:42:32,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:42:32,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:42:32,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:42:32,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:42:32,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:42:32,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:42:32,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:42:32,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:42:32,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:42:32,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:42:32,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:42:32,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:42:32,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:42:32,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:42:32,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:42:32,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:42:32,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:42:32,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:42:32,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:42:32,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:42:32,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:42:32,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:42:32,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:42:32,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:42:32,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:42:32,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:42:32,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:42:32,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:42:32,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:42:32,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:42:32,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:42:32,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:42:32,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:42:32,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:42:32,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:42:32,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:42:32,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:42:32,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:42:32,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:42:32,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:42:32,422 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:42:32,422 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:42:32,422 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:42:32,423 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:42:32,423 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:42:32,423 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:42:32,423 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:42:32,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:42:32,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:42:32,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:42:32,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:42:32,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:42:32,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:42:32,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:42:32,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:42:32,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:42:32,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:42:32,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:42:32,427 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:42:32,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:42:32,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:42:32,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:42:32,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:42:32,428 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:42:32,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:42:32,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:42:32,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:42:32,429 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:42:32,431 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:42:32,431 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-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ce8ca4e0deac77c67f93865fe9306c44a834585 [2020-11-29 18:42:32,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:42:32,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:42:32,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:42:32,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:42:32,809 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:42:32,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/../../sv-benchmarks/c/bitvector/byte_add_2-2.i [2020-11-29 18:42:32,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/data/c46700cd0/3ec62473de74464a804394eb5f63c937/FLAGbd8f4375b [2020-11-29 18:42:33,488 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:42:33,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/sv-benchmarks/c/bitvector/byte_add_2-2.i [2020-11-29 18:42:33,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/data/c46700cd0/3ec62473de74464a804394eb5f63c937/FLAGbd8f4375b [2020-11-29 18:42:33,857 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/data/c46700cd0/3ec62473de74464a804394eb5f63c937 [2020-11-29 18:42:33,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:42:33,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:42:33,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:42:33,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:42:33,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:42:33,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:42:33" (1/1) ... [2020-11-29 18:42:33,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4674675a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:33, skipping insertion in model container [2020-11-29 18:42:33,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:42:33" (1/1) ... [2020-11-29 18:42:33,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:42:33,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:42:34,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:42:34,235 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:42:34,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:42:34,301 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:42:34,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34 WrapperNode [2020-11-29 18:42:34,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:42:34,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:42:34,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:42:34,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:42:34,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:42:34,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:42:34,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:42:34,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:42:34,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... [2020-11-29 18:42:34,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:42:34,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:42:34,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:42:34,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:42:34,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:42:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:42:34,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:42:34,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:42:34,989 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:42:34,989 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 18:42:34,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:34 BoogieIcfgContainer [2020-11-29 18:42:34,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:42:34,993 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:42:34,993 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:42:34,997 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:42:34,998 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:42:34,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:42:33" (1/3) ... [2020-11-29 18:42:35,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4826b919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:42:34, skipping insertion in model container [2020-11-29 18:42:35,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:42:35,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:42:34" (2/3) ... [2020-11-29 18:42:35,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4826b919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:42:35, skipping insertion in model container [2020-11-29 18:42:35,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:42:35,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:42:34" (3/3) ... [2020-11-29 18:42:35,003 INFO L373 chiAutomizerObserver]: Analyzing ICFG byte_add_2-2.i [2020-11-29 18:42:35,055 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:42:35,056 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:42:35,056 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:42:35,056 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:42:35,057 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:42:35,057 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:42:35,057 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:42:35,057 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:42:35,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states. [2020-11-29 18:42:35,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2020-11-29 18:42:35,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:35,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:35,104 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:42:35,105 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:35,105 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:42:35,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states. [2020-11-29 18:42:35,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2020-11-29 18:42:35,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:35,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:35,111 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:42:35,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:35,121 INFO L794 eck$LassoCheckResult]: Stem: 38#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 10#L51true assume !(0 == mp_add_~a3~0 % 256); 8#L51-1true mp_add_~nb~0 := 4; 33#L61true assume !(0 == mp_add_~b3~0 % 256); 31#L61-1true mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 27#L72-2true [2020-11-29 18:42:35,121 INFO L796 eck$LassoCheckResult]: Loop: 27#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; 39#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); 29#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; 16#L87-1true assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3#L91-1true assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26#L92-1true assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7#L93-1true assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 35#L94-1true mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27#L72-2true [2020-11-29 18:42:35,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:35,129 INFO L82 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2020-11-29 18:42:35,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:35,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393170239] [2020-11-29 18:42:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:35,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:35,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:35,449 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:35,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:35,451 INFO L82 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2020-11-29 18:42:35,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:35,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602203819] [2020-11-29 18:42:35,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:35,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602203819] [2020-11-29 18:42:35,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:35,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:42:35,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612679448] [2020-11-29 18:42:35,548 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:42:35,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:35,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:42:35,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:42:35,569 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2020-11-29 18:42:35,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:35,906 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-11-29 18:42:35,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:42:35,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 95 transitions. [2020-11-29 18:42:35,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2020-11-29 18:42:35,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 56 states and 86 transitions. [2020-11-29 18:42:35,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2020-11-29 18:42:35,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2020-11-29 18:42:35,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2020-11-29 18:42:35,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:42:35,933 INFO L691 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2020-11-29 18:42:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2020-11-29 18:42:35,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2020-11-29 18:42:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-29 18:42:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2020-11-29 18:42:35,984 INFO L714 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2020-11-29 18:42:35,985 INFO L594 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2020-11-29 18:42:35,985 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:42:35,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2020-11-29 18:42:35,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2020-11-29 18:42:35,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:35,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:36,002 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:36,002 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:36,003 INFO L794 eck$LassoCheckResult]: Stem: 153#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); 132#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 128#L51 assume !(0 == mp_add_~a3~0 % 256); 125#L51-1 mp_add_~nb~0 := 4; 126#L61 assume !(0 == mp_add_~b3~0 % 256); 134#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 147#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; 148#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 143#L75-1 [2020-11-29 18:42:36,005 INFO L796 eck$LassoCheckResult]: Loop: 143#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 131#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; 138#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 117#L91-1 assume !(1 == mp_add_~i~0 % 256); 118#L92-1 assume !(2 == mp_add_~i~0 % 256); 123#L93-1 assume !(3 == mp_add_~i~0 % 256); 124#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 151#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; 160#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 161#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 136#L76-2 assume !(1 == mp_add_~i~0 % 256); 137#L77-1 assume !(2 == mp_add_~i~0 % 256); 142#L78-1 assume !(3 == mp_add_~i~0 % 256); 143#L75-1 [2020-11-29 18:42:36,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:36,006 INFO L82 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2020-11-29 18:42:36,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:36,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463089383] [2020-11-29 18:42:36,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:36,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463089383] [2020-11-29 18:42:36,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:36,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:42:36,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970880782] [2020-11-29 18:42:36,320 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:42:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:36,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2020-11-29 18:42:36,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:36,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244919113] [2020-11-29 18:42:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:36,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244919113] [2020-11-29 18:42:36,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:36,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:42:36,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454082345] [2020-11-29 18:42:36,492 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:42:36,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:36,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:42:36,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:42:36,494 INFO L87 Difference]: Start difference. First operand 54 states and 84 transitions. cyclomatic complexity: 32 Second operand 6 states. [2020-11-29 18:42:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:37,390 INFO L93 Difference]: Finished difference Result 177 states and 257 transitions. [2020-11-29 18:42:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:42:37,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 257 transitions. [2020-11-29 18:42:37,397 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 117 [2020-11-29 18:42:37,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 257 transitions. [2020-11-29 18:42:37,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2020-11-29 18:42:37,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2020-11-29 18:42:37,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 257 transitions. [2020-11-29 18:42:37,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:42:37,411 INFO L691 BuchiCegarLoop]: Abstraction has 177 states and 257 transitions. [2020-11-29 18:42:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 257 transitions. [2020-11-29 18:42:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 69. [2020-11-29 18:42:37,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-29 18:42:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 102 transitions. [2020-11-29 18:42:37,428 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 102 transitions. [2020-11-29 18:42:37,428 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 102 transitions. [2020-11-29 18:42:37,429 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:42:37,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 102 transitions. [2020-11-29 18:42:37,431 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2020-11-29 18:42:37,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:37,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:37,435 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:37,435 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:37,436 INFO L794 eck$LassoCheckResult]: Stem: 405#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); 381#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 378#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 380#L53 assume !(0 == mp_add_~a2~0 % 256); 374#L51-1 mp_add_~nb~0 := 4; 375#L61 assume !(0 == mp_add_~b3~0 % 256); 398#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 399#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; 417#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 392#L75-1 [2020-11-29 18:42:37,437 INFO L796 eck$LassoCheckResult]: Loop: 392#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 377#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; 387#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 365#L91-1 assume !(1 == mp_add_~i~0 % 256); 366#L92-1 assume !(2 == mp_add_~i~0 % 256); 371#L93-1 assume !(3 == mp_add_~i~0 % 256); 372#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 400#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; 410#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 426#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 385#L76-2 assume !(1 == mp_add_~i~0 % 256); 386#L77-1 assume !(2 == mp_add_~i~0 % 256); 391#L78-1 assume !(3 == mp_add_~i~0 % 256); 392#L75-1 [2020-11-29 18:42:37,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:37,438 INFO L82 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2020-11-29 18:42:37,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:37,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279342519] [2020-11-29 18:42:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:37,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279342519] [2020-11-29 18:42:37,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:37,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 18:42:37,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442714959] [2020-11-29 18:42:37,728 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:42:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:37,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2020-11-29 18:42:37,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:37,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760677953] [2020-11-29 18:42:37,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:37,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760677953] [2020-11-29 18:42:37,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:37,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:42:37,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42983982] [2020-11-29 18:42:37,820 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:42:37,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:37,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:42:37,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:42:37,821 INFO L87 Difference]: Start difference. First operand 69 states and 102 transitions. cyclomatic complexity: 35 Second operand 7 states. [2020-11-29 18:42:52,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:52,417 INFO L93 Difference]: Finished difference Result 307 states and 453 transitions. [2020-11-29 18:42:52,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 18:42:52,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 453 transitions. [2020-11-29 18:42:52,426 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 214 [2020-11-29 18:42:52,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 307 states and 453 transitions. [2020-11-29 18:42:52,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 307 [2020-11-29 18:42:52,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 307 [2020-11-29 18:42:52,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 453 transitions. [2020-11-29 18:42:52,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:42:52,436 INFO L691 BuchiCegarLoop]: Abstraction has 307 states and 453 transitions. [2020-11-29 18:42:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 453 transitions. [2020-11-29 18:42:52,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 159. [2020-11-29 18:42:52,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-29 18:42:52,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2020-11-29 18:42:52,458 INFO L714 BuchiCegarLoop]: Abstraction has 159 states and 229 transitions. [2020-11-29 18:42:52,458 INFO L594 BuchiCegarLoop]: Abstraction has 159 states and 229 transitions. [2020-11-29 18:42:52,459 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:42:52,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 229 transitions. [2020-11-29 18:42:52,461 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 88 [2020-11-29 18:42:52,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:52,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:52,463 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:52,463 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:52,464 INFO L794 eck$LassoCheckResult]: Stem: 810#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); 783#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 781#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 782#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 809#L55 assume !(0 == mp_add_~a1~0 % 256); 813#L51-1 mp_add_~nb~0 := 4; 821#L61 assume !(0 == mp_add_~b3~0 % 256); 817#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 818#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; 832#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 901#L75-1 [2020-11-29 18:42:52,464 INFO L796 eck$LassoCheckResult]: Loop: 901#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 885#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; 869#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 868#L91-1 assume !(1 == mp_add_~i~0 % 256); 867#L92-1 assume !(2 == mp_add_~i~0 % 256); 865#L93-1 assume !(3 == mp_add_~i~0 % 256); 836#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 834#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; 835#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 811#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 907#L76-2 assume !(1 == mp_add_~i~0 % 256); 906#L77-1 assume !(2 == mp_add_~i~0 % 256); 904#L78-1 assume !(3 == mp_add_~i~0 % 256); 901#L75-1 [2020-11-29 18:42:52,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:52,465 INFO L82 PathProgramCache]: Analyzing trace with hash -2089936051, now seen corresponding path program 1 times [2020-11-29 18:42:52,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:52,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518732456] [2020-11-29 18:42:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:52,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:52,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518732456] [2020-11-29 18:42:52,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:52,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 18:42:52,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957701512] [2020-11-29 18:42:52,866 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:42:52,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:52,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 3 times [2020-11-29 18:42:52,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:52,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174931219] [2020-11-29 18:42:52,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:52,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174931219] [2020-11-29 18:42:52,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:52,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:42:52,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417709537] [2020-11-29 18:42:52,990 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:42:52,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:52,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:42:52,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:42:52,991 INFO L87 Difference]: Start difference. First operand 159 states and 229 transitions. cyclomatic complexity: 74 Second operand 8 states. [2020-11-29 18:42:56,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:42:56,542 INFO L93 Difference]: Finished difference Result 336 states and 479 transitions. [2020-11-29 18:42:56,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 18:42:56,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 336 states and 479 transitions. [2020-11-29 18:42:56,549 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 205 [2020-11-29 18:42:56,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 336 states to 336 states and 479 transitions. [2020-11-29 18:42:56,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 336 [2020-11-29 18:42:56,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 336 [2020-11-29 18:42:56,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 336 states and 479 transitions. [2020-11-29 18:42:56,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:42:56,558 INFO L691 BuchiCegarLoop]: Abstraction has 336 states and 479 transitions. [2020-11-29 18:42:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states and 479 transitions. [2020-11-29 18:42:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 166. [2020-11-29 18:42:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-29 18:42:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 239 transitions. [2020-11-29 18:42:56,582 INFO L714 BuchiCegarLoop]: Abstraction has 166 states and 239 transitions. [2020-11-29 18:42:56,582 INFO L594 BuchiCegarLoop]: Abstraction has 166 states and 239 transitions. [2020-11-29 18:42:56,582 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 18:42:56,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 239 transitions. [2020-11-29 18:42:56,584 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 88 [2020-11-29 18:42:56,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:56,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:56,585 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:56,586 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:56,586 INFO L794 eck$LassoCheckResult]: Stem: 1332#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); 1309#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 1306#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1308#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1331#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1333#L51-1 mp_add_~nb~0 := 4; 1416#L61 assume !(0 == mp_add_~b3~0 % 256); 1413#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1411#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; 1412#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1320#L75-1 [2020-11-29 18:42:56,586 INFO L796 eck$LassoCheckResult]: Loop: 1320#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1305#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; 1315#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1293#L91-1 assume !(1 == mp_add_~i~0 % 256); 1294#L92-1 assume !(2 == mp_add_~i~0 % 256); 1322#L93-1 assume !(3 == mp_add_~i~0 % 256); 1419#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1417#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; 1418#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1430#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1313#L76-2 assume !(1 == mp_add_~i~0 % 256); 1314#L77-1 assume !(2 == mp_add_~i~0 % 256); 1319#L78-1 assume !(3 == mp_add_~i~0 % 256); 1320#L75-1 [2020-11-29 18:42:56,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:56,587 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194353, now seen corresponding path program 1 times [2020-11-29 18:42:56,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:56,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689332395] [2020-11-29 18:42:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:56,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689332395] [2020-11-29 18:42:56,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:56,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 18:42:56,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855344224] [2020-11-29 18:42:56,882 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:42:56,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:56,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 4 times [2020-11-29 18:42:56,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:56,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603526216] [2020-11-29 18:42:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:56,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603526216] [2020-11-29 18:42:56,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:42:56,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:42:56,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893883742] [2020-11-29 18:42:56,996 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:42:56,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:42:56,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:42:56,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:42:56,997 INFO L87 Difference]: Start difference. First operand 166 states and 239 transitions. cyclomatic complexity: 77 Second operand 8 states. [2020-11-29 18:43:13,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:43:13,196 INFO L93 Difference]: Finished difference Result 299 states and 428 transitions. [2020-11-29 18:43:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 18:43:13,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 299 states and 428 transitions. [2020-11-29 18:43:13,202 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 192 [2020-11-29 18:43:13,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 299 states to 299 states and 428 transitions. [2020-11-29 18:43:13,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2020-11-29 18:43:13,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2020-11-29 18:43:13,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 299 states and 428 transitions. [2020-11-29 18:43:13,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:43:13,214 INFO L691 BuchiCegarLoop]: Abstraction has 299 states and 428 transitions. [2020-11-29 18:43:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states and 428 transitions. [2020-11-29 18:43:13,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 254. [2020-11-29 18:43:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-29 18:43:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 367 transitions. [2020-11-29 18:43:13,254 INFO L714 BuchiCegarLoop]: Abstraction has 254 states and 367 transitions. [2020-11-29 18:43:13,254 INFO L594 BuchiCegarLoop]: Abstraction has 254 states and 367 transitions. [2020-11-29 18:43:13,254 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 18:43:13,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 254 states and 367 transitions. [2020-11-29 18:43:13,257 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 162 [2020-11-29 18:43:13,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:13,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:13,258 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:13,258 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:13,258 INFO L794 eck$LassoCheckResult]: Stem: 1824#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); 1803#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 1800#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1802#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1823#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1796#L51-1 mp_add_~nb~0 := 4; 1797#L61 assume !(0 == mp_add_~b3~0 % 256); 1805#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1817#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; 1818#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1810#L76 [2020-11-29 18:43:13,259 INFO L796 eck$LassoCheckResult]: Loop: 1810#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1807#L76-2 assume !(1 == mp_add_~i~0 % 256); 1808#L77-1 assume !(2 == mp_add_~i~0 % 256); 1813#L78-1 assume !(3 == mp_add_~i~0 % 256); 1814#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1799#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; 1809#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1787#L91-1 assume !(1 == mp_add_~i~0 % 256); 1788#L92-1 assume !(2 == mp_add_~i~0 % 256); 1793#L93-1 assume !(3 == mp_add_~i~0 % 256); 1794#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1826#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; 1827#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1810#L76 [2020-11-29 18:43:13,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:13,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 1 times [2020-11-29 18:43:13,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:13,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613974718] [2020-11-29 18:43:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:13,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:13,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:13,342 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:13,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:13,343 INFO L82 PathProgramCache]: Analyzing trace with hash -135428754, now seen corresponding path program 5 times [2020-11-29 18:43:13,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:13,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267821855] [2020-11-29 18:43:13,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:13,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:13,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:13,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:13,362 INFO L82 PathProgramCache]: Analyzing trace with hash -578820102, now seen corresponding path program 1 times [2020-11-29 18:43:13,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:13,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401665415] [2020-11-29 18:43:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:43:13,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401665415] [2020-11-29 18:43:13,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:43:13,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:43:13,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907684042] [2020-11-29 18:43:13,622 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-11-29 18:43:13,689 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:43:13,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:43:13,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:43:13,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:43:13,690 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 18:43:13,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:13,690 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:43:13,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:43:13,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration6_Loop [2020-11-29 18:43:13,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:43:13,691 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:43:13,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:13,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:13,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:13,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:13,961 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-11-29 18:43:14,194 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:43:14,195 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:14,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:43:14,250 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:14,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:43:14,260 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~r0~0=0} Honda state: {ULTIMATE.start_mp_add_~r0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:14,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:43:14,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 18:43:14,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 18:43:14,309 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:14,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 18:43:14,356 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:14,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 18:43:14,521 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:26,582 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-11-29 18:43:26,586 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:43:26,586 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:43:26,586 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:43:26,586 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:43:26,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:43:26,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:26,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:43:26,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:43:26,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration6_Loop [2020-11-29 18:43:26,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:43:26,587 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:43:26,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:26,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:26,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:26,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:26,822 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2020-11-29 18:43:26,930 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-11-29 18:43:27,043 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:43:27,049 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:27,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:27,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:27,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:27,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:27,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:27,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:27,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:27,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:27,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:27,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:27,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:27,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:27,227 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,236 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:27,238 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:27,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:27,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,314 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:27,316 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:27,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,371 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:27,379 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:27,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,439 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:27,454 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:27,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:27,514 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,535 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:27,537 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:27,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,596 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:27,597 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:27,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,667 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:27,677 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:27,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,746 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:27,754 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:27,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:27,804 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,816 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:27,818 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:27,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,881 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:27,888 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:27,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:27,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:27,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:27,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:27,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:27,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:27,953 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:27,965 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:27,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:27,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:28,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,025 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:28,035 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:28,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:28,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:28,090 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,099 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,100 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:28,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,100 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:28,102 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:28,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,153 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,154 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:28,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,154 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,187 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:28,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:28,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,259 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,260 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:28,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,260 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:28,269 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:28,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,332 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,332 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:28,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,332 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 18:43:28,340 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 18:43:28,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:28,393 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,408 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,408 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 18:43:28,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,409 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:28,411 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:28,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:28,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,468 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,468 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 18:43:28,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,469 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:28,478 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:28,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,533 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,533 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 18:43:28,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,534 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:28,545 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:28,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,613 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,613 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 18:43:28,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,614 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:28,624 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:28,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,641 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:28,684 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,693 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,694 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:28,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,694 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:28,697 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:28,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:28,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,753 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,754 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:28,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,754 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:28,758 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:28,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,806 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,806 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:28,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,806 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:28,820 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:28,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:28,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,880 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,880 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:28,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,881 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 18:43:28,906 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 18:43:28,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:28,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:28,979 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:28,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:28,983 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:28,984 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:28,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:28,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:28,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:28,984 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:28,992 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:28,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:28,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:29,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,053 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,053 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:29,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,054 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:29,056 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:29,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:29,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,116 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,116 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:29,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,117 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:29,127 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:29,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:29,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,192 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,192 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 18:43:29,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,193 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 18:43:29,202 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 18:43:29,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:29,254 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:29,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,262 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,262 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:29,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,263 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 18:43:29,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:29,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,271 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:43:29,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,323 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,323 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:29,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,323 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 18:43:29,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:29,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,383 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,383 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:29,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,384 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 18:43:29,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:29,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:29,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:29,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:29,437 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 18:43:29,438 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 18:43:29,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:29,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:29,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:29,438 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 18:43:29,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:29,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:29,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 18:43:29,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:43:29,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:43:29,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:43:29,511 INFO L87 Difference]: Start difference. First operand 254 states and 367 transitions. cyclomatic complexity: 120 Second operand 4 states. [2020-11-29 18:43:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:43:29,825 INFO L93 Difference]: Finished difference Result 485 states and 689 transitions. [2020-11-29 18:43:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:43:29,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 485 states and 689 transitions. [2020-11-29 18:43:29,832 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 337 [2020-11-29 18:43:29,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 485 states to 485 states and 689 transitions. [2020-11-29 18:43:29,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 485 [2020-11-29 18:43:29,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 485 [2020-11-29 18:43:29,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 485 states and 689 transitions. [2020-11-29 18:43:29,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:43:29,840 INFO L691 BuchiCegarLoop]: Abstraction has 485 states and 689 transitions. [2020-11-29 18:43:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states and 689 transitions. [2020-11-29 18:43:29,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 443. [2020-11-29 18:43:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-11-29 18:43:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 634 transitions. [2020-11-29 18:43:29,859 INFO L714 BuchiCegarLoop]: Abstraction has 443 states and 634 transitions. [2020-11-29 18:43:29,859 INFO L594 BuchiCegarLoop]: Abstraction has 443 states and 634 transitions. [2020-11-29 18:43:29,859 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 18:43:29,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 634 transitions. [2020-11-29 18:43:29,863 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 296 [2020-11-29 18:43:29,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:29,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:29,864 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:29,865 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:29,865 INFO L794 eck$LassoCheckResult]: Stem: 2578#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); 2551#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 2546#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 2548#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 2577#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 2543#L51-1 mp_add_~nb~0 := 4; 2544#L61 assume !(0 == mp_add_~b3~0 % 256); 2865#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 2968#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; 2579#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2558#L76 [2020-11-29 18:43:29,865 INFO L796 eck$LassoCheckResult]: Loop: 2558#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2559#L76-2 assume !(1 == mp_add_~i~0 % 256); 2580#L77-1 assume !(2 == mp_add_~i~0 % 256); 2562#L78-1 assume !(3 == mp_add_~i~0 % 256); 2563#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 2545#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 2539#L82-2 assume !(1 == mp_add_~i~0 % 256); 2540#L83-1 assume !(2 == mp_add_~i~0 % 256); 2549#L84-1 assume !(3 == mp_add_~i~0 % 256); 2550#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; 2557#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2535#L91-1 assume !(1 == mp_add_~i~0 % 256); 2536#L92-1 assume !(2 == mp_add_~i~0 % 256); 2541#L93-1 assume !(3 == mp_add_~i~0 % 256); 2542#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2586#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; 2891#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2558#L76 [2020-11-29 18:43:29,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:29,866 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 2 times [2020-11-29 18:43:29,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:29,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224480075] [2020-11-29 18:43:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:29,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:29,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:29,902 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:29,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:29,903 INFO L82 PathProgramCache]: Analyzing trace with hash 113218786, now seen corresponding path program 1 times [2020-11-29 18:43:29,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:29,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483280189] [2020-11-29 18:43:29,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:29,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:29,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:29,921 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:29,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1074123118, now seen corresponding path program 1 times [2020-11-29 18:43:29,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:29,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536884936] [2020-11-29 18:43:29,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:43:30,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536884936] [2020-11-29 18:43:30,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782170674] [2020-11-29 18:43:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffff040-c8f6-4ee5-9790-665de007a026/bin/uautomizer/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:43:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:30,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 18:43:30,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:43:30,581 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 18:43:30,986 INFO L721 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 18:43:31,559 INFO L721 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 18:43:32,363 INFO L721 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-11-29 18:49:21,823 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) stderr output: (error "out of memory") [2020-11-29 18:49:21,824 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") [2020-11-29 18:49:21,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:49:21,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-29 18:49:21,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191235968] [2020-11-29 18:49:21,827 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.(UndoableWrapperScript.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:152) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:134) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition(TransFormulaUtils.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.SequentialComposition.getInterproceduralTransFormula(SequentialComposition.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.SequentialComposition.getInterproceduralTransFormula(SequentialComposition.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeTF(LassoCheck.java:362) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:344) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:836) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:461) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:382) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:254) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 29 more [2020-11-29 18:49:21,834 INFO L168 Benchmark]: Toolchain (without parser) took 407970.57 ms. Allocated memory was 98.6 MB in the beginning and 232.8 MB in the end (delta: 134.2 MB). Free memory was 62.6 MB in the beginning and 165.0 MB in the end (delta: -102.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:21,834 INFO L168 Benchmark]: CDTParser took 1.10 ms. Allocated memory is still 98.6 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:21,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.66 ms. Allocated memory is still 98.6 MB. Free memory was 62.4 MB in the beginning and 73.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:21,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.57 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 72.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:21,836 INFO L168 Benchmark]: Boogie Preprocessor took 36.39 ms. Allocated memory is still 98.6 MB. Free memory was 72.0 MB in the beginning and 70.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:49:21,837 INFO L168 Benchmark]: RCFGBuilder took 600.30 ms. Allocated memory is still 98.6 MB. Free memory was 70.4 MB in the beginning and 50.2 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:21,838 INFO L168 Benchmark]: BuchiAutomizer took 406839.92 ms. Allocated memory was 98.6 MB in the beginning and 232.8 MB in the end (delta: 134.2 MB). Free memory was 50.2 MB in the beginning and 165.0 MB in the end (delta: -114.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:49:21,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10 ms. Allocated memory is still 98.6 MB. Free memory is still 78.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.66 ms. Allocated memory is still 98.6 MB. Free memory was 62.4 MB in the beginning and 73.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.57 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 72.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.39 ms. Allocated memory is still 98.6 MB. Free memory was 72.0 MB in the beginning and 70.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 600.30 ms. Allocated memory is still 98.6 MB. Free memory was 70.4 MB in the beginning and 50.2 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 406839.92 ms. Allocated memory was 98.6 MB in the beginning and 232.8 MB in the end (delta: 134.2 MB). Free memory was 50.2 MB in the beginning and 165.0 MB in the end (delta: -114.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...