./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/diff-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/diff-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 64bit --witnessprinter.graph.data.programhash 0c73140129db08253eb2666e014a272764010e16 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:36:49,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:36:50,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:36:50,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:36:50,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:36:50,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:36:50,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:36:50,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:36:50,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:36:50,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:36:50,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:36:50,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:36:50,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:36:50,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:36:50,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:36:50,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:36:50,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:36:50,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:36:50,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:36:50,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:36:50,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:36:50,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:36:50,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:36:50,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:36:50,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:36:50,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:36:50,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:36:50,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:36:50,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:36:50,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:36:50,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:36:50,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:36:50,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:36:50,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:36:50,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:36:50,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:36:50,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:36:50,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:36:50,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:36:50,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:36:50,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:36:50,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:36:50,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:36:50,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:36:50,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:36:50,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:36:50,157 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:36:50,157 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:36:50,157 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:36:50,157 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:36:50,157 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:36:50,158 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:36:50,158 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:36:50,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:36:50,158 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:36:50,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:36:50,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:36:50,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:36:50,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:36:50,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:36:50,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:36:50,160 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:36:50,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:36:50,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:36:50,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:36:50,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:36:50,161 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:36:50,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:36:50,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:36:50,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:36:50,162 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:36:50,163 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:36:50,163 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_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c73140129db08253eb2666e014a272764010e16 [2020-11-30 00:36:50,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:36:50,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:36:50,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:36:50,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:36:50,454 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:36:50,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/diff-alloca-1.i [2020-11-30 00:36:50,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/data/9ca7b4b0e/e01df8093c454d5583fa2cb78fc231fd/FLAG7a1e3677d [2020-11-30 00:36:51,053 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:36:51,053 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/sv-benchmarks/c/termination-memory-alloca/diff-alloca-1.i [2020-11-30 00:36:51,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/data/9ca7b4b0e/e01df8093c454d5583fa2cb78fc231fd/FLAG7a1e3677d [2020-11-30 00:36:51,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/data/9ca7b4b0e/e01df8093c454d5583fa2cb78fc231fd [2020-11-30 00:36:51,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:36:51,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:36:51,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:51,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:36:51,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:36:51,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60532687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51, skipping insertion in model container [2020-11-30 00:36:51,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:36:51,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:36:51,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:51,760 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:36:51,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:51,897 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:36:51,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51 WrapperNode [2020-11-30 00:36:51,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:51,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:51,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:36:51,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:36:51,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:51,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:36:51,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:36:51,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:36:51,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:51,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:52,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:52,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:52,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... [2020-11-30 00:36:52,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:36:52,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:36:52,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:36:52,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:36:52,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:36:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:36:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:36:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:36:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:36:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:36:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:36:52,472 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:36:52,473 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:36:52,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:52 BoogieIcfgContainer [2020-11-30 00:36:52,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:36:52,476 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:36:52,476 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:36:52,480 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:36:52,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:36:52,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:36:51" (1/3) ... [2020-11-30 00:36:52,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@472e6d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:36:52, skipping insertion in model container [2020-11-30 00:36:52,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:36:52,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:51" (2/3) ... [2020-11-30 00:36:52,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@472e6d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:36:52, skipping insertion in model container [2020-11-30 00:36:52,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:36:52,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:52" (3/3) ... [2020-11-30 00:36:52,485 INFO L373 chiAutomizerObserver]: Analyzing ICFG diff-alloca-1.i [2020-11-30 00:36:52,546 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:36:52,546 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:36:52,547 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:36:52,547 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:36:52,547 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:36:52,547 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:36:52,547 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:36:52,547 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:36:52,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-30 00:36:52,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:36:52,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:52,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:52,614 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:36:52,615 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:36:52,615 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:36:52,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-30 00:36:52,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:36:52,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:52,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:52,619 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:36:52,619 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:36:52,627 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 9#L574true assume !(main_~Alen~0 < 1); 14#L574-2true assume !(main_~Blen~0 < 1); 7#L577-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 12#L554-2true [2020-11-30 00:36:52,627 INFO L796 eck$LassoCheckResult]: Loop: 12#L554-2true assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 5#L558-2true assume !true; 6#L557-2true assume 0 == diff_~found~0;call diff_#t~mem5 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call write~int(diff_#t~mem5, diff_~D.base, diff_~D.offset + 4 * diff_~k~0, 4);havoc diff_#t~mem5;diff_#t~post6 := diff_~k~0;diff_~k~0 := 1 + diff_#t~post6;havoc diff_#t~post6; 11#L564-1true diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 12#L554-2true [2020-11-30 00:36:52,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:52,635 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-30 00:36:52,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:52,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464501337] [2020-11-30 00:36:52,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:52,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:52,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:52,856 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:52,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1679350, now seen corresponding path program 1 times [2020-11-30 00:36:52,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:52,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550411788] [2020-11-30 00:36:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:52,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550411788] [2020-11-30 00:36:52,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:52,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:36:52,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126054787] [2020-11-30 00:36:52,931 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:36:52,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:52,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:36:52,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:36:52,950 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-30 00:36:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:52,956 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2020-11-30 00:36:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:36:52,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2020-11-30 00:36:52,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:36:52,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 15 transitions. [2020-11-30 00:36:52,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-30 00:36:52,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-30 00:36:52,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2020-11-30 00:36:52,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:52,968 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-11-30 00:36:52,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2020-11-30 00:36:52,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-30 00:36:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 00:36:52,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2020-11-30 00:36:52,995 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-11-30 00:36:52,995 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2020-11-30 00:36:52,996 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:36:52,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2020-11-30 00:36:52,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:36:52,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:52,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:52,999 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:36:52,999 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:36:53,000 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 36#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 37#L574 assume !(main_~Alen~0 < 1); 38#L574-2 assume !(main_~Blen~0 < 1); 44#L577-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 42#L554-2 [2020-11-30 00:36:53,001 INFO L796 eck$LassoCheckResult]: Loop: 42#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 40#L558-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 45#L557-2 assume 0 == diff_~found~0;call diff_#t~mem5 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call write~int(diff_#t~mem5, diff_~D.base, diff_~D.offset + 4 * diff_~k~0, 4);havoc diff_#t~mem5;diff_#t~post6 := diff_~k~0;diff_~k~0 := 1 + diff_#t~post6;havoc diff_#t~post6; 41#L564-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 42#L554-2 [2020-11-30 00:36:53,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,002 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-11-30 00:36:53,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964880763] [2020-11-30 00:36:53,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1669740, now seen corresponding path program 1 times [2020-11-30 00:36:53,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93781126] [2020-11-30 00:36:53,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:53,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1298476337, now seen corresponding path program 1 times [2020-11-30 00:36:53,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259006290] [2020-11-30 00:36:53,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:53,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259006290] [2020-11-30 00:36:53,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:53,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:36:53,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63640027] [2020-11-30 00:36:53,383 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-11-30 00:36:53,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:53,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:36:53,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:36:53,457 INFO L87 Difference]: Start difference. First operand 10 states and 15 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-11-30 00:36:53,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:53,541 INFO L93 Difference]: Finished difference Result 12 states and 18 transitions. [2020-11-30 00:36:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:36:53,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2020-11-30 00:36:53,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-30 00:36:53,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 18 transitions. [2020-11-30 00:36:53,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-11-30 00:36:53,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-30 00:36:53,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 18 transitions. [2020-11-30 00:36:53,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:53,547 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2020-11-30 00:36:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 18 transitions. [2020-11-30 00:36:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-30 00:36:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 00:36:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-11-30 00:36:53,558 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-30 00:36:53,558 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-30 00:36:53,558 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:36:53,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-11-30 00:36:53,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-30 00:36:53,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:53,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:53,560 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:36:53,560 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:36:53,560 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 72#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 73#L574 assume !(main_~Alen~0 < 1); 76#L574-2 assume !(main_~Blen~0 < 1); 81#L577-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 78#L554-2 [2020-11-30 00:36:53,560 INFO L796 eck$LassoCheckResult]: Loop: 78#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 80#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 74#L558 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem2;havoc diff_#t~mem3;diff_~found~0 := 1; 75#L558-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 82#L557-2 assume 0 == diff_~found~0;call diff_#t~mem5 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call write~int(diff_#t~mem5, diff_~D.base, diff_~D.offset + 4 * diff_~k~0, 4);havoc diff_#t~mem5;diff_#t~post6 := diff_~k~0;diff_~k~0 := 1 + diff_#t~post6;havoc diff_#t~post6; 77#L564-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 78#L554-2 [2020-11-30 00:36:53,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,561 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 3 times [2020-11-30 00:36:53,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483089348] [2020-11-30 00:36:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1606183209, now seen corresponding path program 1 times [2020-11-30 00:36:53,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296566877] [2020-11-30 00:36:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:53,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296566877] [2020-11-30 00:36:53,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:53,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:36:53,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602207575] [2020-11-30 00:36:53,654 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:36:53,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:53,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:36:53,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:36:53,655 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-11-30 00:36:53,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:53,700 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2020-11-30 00:36:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:36:53,701 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2020-11-30 00:36:53,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-11-30 00:36:53,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2020-11-30 00:36:53,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-30 00:36:53,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-30 00:36:53,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2020-11-30 00:36:53,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:36:53,703 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-11-30 00:36:53,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2020-11-30 00:36:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2020-11-30 00:36:53,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:36:53,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2020-11-30 00:36:53,706 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-30 00:36:53,706 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-30 00:36:53,706 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:36:53,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2020-11-30 00:36:53,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-30 00:36:53,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:53,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:53,708 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:36:53,708 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:36:53,708 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 109#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 110#L574 assume !(main_~Alen~0 < 1); 114#L574-2 assume !(main_~Blen~0 < 1); 120#L577-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 116#L554-2 [2020-11-30 00:36:53,708 INFO L796 eck$LassoCheckResult]: Loop: 116#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 118#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 111#L558 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem2;havoc diff_#t~mem3;diff_~found~0 := 1; 112#L558-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 119#L557-2 assume !(0 == diff_~found~0); 115#L564-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 116#L554-2 [2020-11-30 00:36:53,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,709 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 4 times [2020-11-30 00:36:53,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715539229] [2020-11-30 00:36:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:53,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1606183271, now seen corresponding path program 1 times [2020-11-30 00:36:53,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834698710] [2020-11-30 00:36:53,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,782 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:53,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1998160148, now seen corresponding path program 1 times [2020-11-30 00:36:53,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:53,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682707901] [2020-11-30 00:36:53,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:53,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:53,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:54,553 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-11-30 00:36:54,780 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-11-30 00:36:54,797 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:36:54,798 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:36:54,798 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:36:54,799 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:36:54,799 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:36:54,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:54,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:36:54,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:36:54,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-1.i_Iteration4_Lasso [2020-11-30 00:36:54,800 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:36:54,802 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:36:54,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:54,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,453 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-11-30 00:36:55,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:55,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:56,336 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:36:56,341 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,361 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 [2020-11-30 00:36:56,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:56,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:56,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,370 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,395 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 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:56,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:56,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:56,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,441 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 [2020-11-30 00:36:56,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:56,457 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,501 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 [2020-11-30 00:36:56,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,555 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 [2020-11-30 00:36:56,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:36:56,596 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 [2020-11-30 00:36:56,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:56,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:56,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:56,600 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:36:56,624 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 [2020-11-30 00:36:56,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:56,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:36:56,664 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 [2020-11-30 00:36:56,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:56,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:56,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:56,669 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:36:56,697 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 [2020-11-30 00:36:56,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:56,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:56,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:36:56,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,734 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 [2020-11-30 00:36:56,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:56,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,807 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 [2020-11-30 00:36:56,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,861 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 [2020-11-30 00:36:56,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,920 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 [2020-11-30 00:36:56,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:56,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:56,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:56,982 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 [2020-11-30 00:36:56,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:56,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:36:56,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:56,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:56,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:56,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:36:56,986 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 [2020-11-30 00:36:56,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:36:57,033 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 [2020-11-30 00:36:57,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:57,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:57,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:57,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:57,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:57,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:57,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:57,096 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 [2020-11-30 00:36:57,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:57,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:57,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:57,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:57,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:57,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:57,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:57,132 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 [2020-11-30 00:36:57,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:36:57,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:36:57,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:36:57,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:36:57,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:36:57,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:36:57,164 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:36:57,360 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-30 00:36:57,361 INFO L444 ModelExtractionUtils]: 13 out of 40 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:57,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:36:57,376 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:36:57,376 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:36:57,377 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_diff_~i~0, ULTIMATE.start_diff_~l1~0) = -1*ULTIMATE.start_diff_~i~0 + 1*ULTIMATE.start_diff_~l1~0 Supporting invariants [] [2020-11-30 00:36:57,515 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2020-11-30 00:36:57,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:57,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:36:57,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:57,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:36:57,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:36:57,615 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:36:57,615 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-11-30 00:36:57,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 21 states and 30 transitions. Complement of second has 4 states. [2020-11-30 00:36:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:36:57,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:36:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-11-30 00:36:57,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-30 00:36:57,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:57,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2020-11-30 00:36:57,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:57,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 5 letters. Loop has 12 letters. [2020-11-30 00:36:57,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:36:57,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2020-11-30 00:36:57,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:36:57,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 24 transitions. [2020-11-30 00:36:57,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-30 00:36:57,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-30 00:36:57,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2020-11-30 00:36:57,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:36:57,671 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2020-11-30 00:36:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2020-11-30 00:36:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-30 00:36:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 00:36:57,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2020-11-30 00:36:57,682 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2020-11-30 00:36:57,682 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2020-11-30 00:36:57,682 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:36:57,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2020-11-30 00:36:57,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:36:57,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:36:57,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:36:57,685 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:36:57,686 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:36:57,686 INFO L794 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 256#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 257#L574 assume !(main_~Alen~0 < 1); 258#L574-2 assume !(main_~Blen~0 < 1); 269#L577-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 267#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 260#L558-2 [2020-11-30 00:36:57,686 INFO L796 eck$LassoCheckResult]: Loop: 260#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 259#L558 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem2;havoc diff_#t~mem3;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 260#L558-2 [2020-11-30 00:36:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:57,687 INFO L82 PathProgramCache]: Analyzing trace with hash 889572242, now seen corresponding path program 1 times [2020-11-30 00:36:57,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:57,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108357484] [2020-11-30 00:36:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:57,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:57,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:57,719 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:57,721 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 1 times [2020-11-30 00:36:57,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:57,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682523397] [2020-11-30 00:36:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:57,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:57,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:57,746 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:57,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:57,747 INFO L82 PathProgramCache]: Analyzing trace with hash 180433719, now seen corresponding path program 1 times [2020-11-30 00:36:57,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:57,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337380493] [2020-11-30 00:36:57,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:57,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:57,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:57,814 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:58,414 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-11-30 00:36:58,639 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-30 00:36:58,642 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:36:58,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:36:58,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:36:58,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:36:58,642 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:36:58,643 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:36:58,643 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:36:58,643 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:36:58,643 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-1.i_Iteration5_Lasso [2020-11-30 00:36:58,643 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:36:58,643 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:36:58,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:58,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:59,268 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2020-11-30 00:36:59,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:36:59,600 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-11-30 00:36:59,969 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-11-30 00:37:00,096 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:37:00,096 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:37:00,127 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 [2020-11-30 00:37:00,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:37:00,176 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 [2020-11-30 00:37:00,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,202 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 [2020-11-30 00:37:00,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,228 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 [2020-11-30 00:37:00,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,253 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 [2020-11-30 00:37:00,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,278 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 [2020-11-30 00:37:00,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,305 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 [2020-11-30 00:37:00,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,332 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 [2020-11-30 00:37:00,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,362 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 [2020-11-30 00:37:00,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,367 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,389 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 [2020-11-30 00:37:00,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,415 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 [2020-11-30 00:37:00,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,445 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 [2020-11-30 00:37:00,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:37:00,481 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 [2020-11-30 00:37:00,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:37:00,514 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 [2020-11-30 00:37:00,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:37:00,573 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 [2020-11-30 00:37:00,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:00,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:00,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:37:00,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:37:00,599 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 Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,630 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 [2020-11-30 00:37:00,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:00,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:00,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:00,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:00,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:00,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:00,688 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:37:00,764 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-30 00:37:00,764 INFO L444 ModelExtractionUtils]: 24 out of 73 variables were initially zero. Simplification set additionally 46 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:37:00,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:00,774 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:37:00,774 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:37:00,774 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_diff_~l2~0, ULTIMATE.start_diff_~j~0) = 1*ULTIMATE.start_diff_~l2~0 - 1*ULTIMATE.start_diff_~j~0 Supporting invariants [] [2020-11-30 00:37:00,875 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2020-11-30 00:37:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:00,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:37:00,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:00,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:37:00,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:37:00,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:37:00,926 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-11-30 00:37:00,951 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 38 states and 53 transitions. Complement of second has 7 states. [2020-11-30 00:37:00,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:37:00,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:37:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-30 00:37:00,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-30 00:37:00,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:00,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:37:00,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:00,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-30 00:37:00,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:00,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 53 transitions. [2020-11-30 00:37:00,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:37:00,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 27 states and 39 transitions. [2020-11-30 00:37:00,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-30 00:37:00,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-30 00:37:00,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 39 transitions. [2020-11-30 00:37:00,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:37:00,958 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2020-11-30 00:37:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 39 transitions. [2020-11-30 00:37:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2020-11-30 00:37:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 00:37:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2020-11-30 00:37:00,960 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-11-30 00:37:00,960 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2020-11-30 00:37:00,960 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 00:37:00,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2020-11-30 00:37:00,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:37:00,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:37:00,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:37:00,962 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:00,962 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:37:00,962 INFO L794 eck$LassoCheckResult]: Stem: 427#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 418#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 419#L574 assume !(main_~Alen~0 < 1); 424#L574-2 assume !(main_~Blen~0 < 1); 432#L577-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 428#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 429#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 436#L558 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem2;havoc diff_#t~mem3;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 437#L558-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 434#L557-2 assume !(0 == diff_~found~0); 425#L564-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 426#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 421#L558-2 [2020-11-30 00:37:00,962 INFO L796 eck$LassoCheckResult]: Loop: 421#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 420#L558 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem2;havoc diff_#t~mem3;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 421#L558-2 [2020-11-30 00:37:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:00,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1811575378, now seen corresponding path program 1 times [2020-11-30 00:37:00,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:00,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297529251] [2020-11-30 00:37:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:01,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:37:01,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297529251] [2020-11-30 00:37:01,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:37:01,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:37:01,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572521517] [2020-11-30 00:37:01,001 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:37:01,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:01,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 2 times [2020-11-30 00:37:01,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:01,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590176169] [2020-11-30 00:37:01,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,018 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:01,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:37:01,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:37:01,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:37:01,076 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-11-30 00:37:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:37:01,087 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2020-11-30 00:37:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:37:01,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2020-11-30 00:37:01,089 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:37:01,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 31 transitions. [2020-11-30 00:37:01,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-30 00:37:01,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-30 00:37:01,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2020-11-30 00:37:01,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:37:01,090 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2020-11-30 00:37:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2020-11-30 00:37:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-11-30 00:37:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 00:37:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2020-11-30 00:37:01,092 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2020-11-30 00:37:01,092 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2020-11-30 00:37:01,092 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-30 00:37:01,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2020-11-30 00:37:01,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:37:01,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:37:01,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:37:01,094 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:37:01,094 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:37:01,094 INFO L794 eck$LassoCheckResult]: Stem: 475#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 466#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 467#L574 assume !(main_~Alen~0 < 1); 472#L574-2 assume !(main_~Blen~0 < 1); 480#L577-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;diff_#in~A.base, diff_#in~A.offset, diff_#in~Alen, diff_#in~B.base, diff_#in~B.offset, diff_#in~Blen, diff_#in~D.base, diff_#in~D.offset := main_~A~0.base, main_~A~0.offset, main_~Alen~0, main_~B~0.base, main_~B~0.offset, main_~Blen~0, main_~D~0.base, main_~D~0.offset;havoc diff_#t~mem2, diff_#t~mem3, diff_#t~post4, diff_#t~mem5, diff_#t~post6, diff_#t~post7, diff_~j~0, diff_~A.base, diff_~A.offset, diff_~Alen, diff_~B.base, diff_~B.offset, diff_~Blen, diff_~D.base, diff_~D.offset, diff_~k~0, diff_~i~0, diff_~l1~0, diff_~l2~0, diff_~found~0;diff_~A.base, diff_~A.offset := diff_#in~A.base, diff_#in~A.offset;diff_~Alen := diff_#in~Alen;diff_~B.base, diff_~B.offset := diff_#in~B.base, diff_#in~B.offset;diff_~Blen := diff_#in~Blen;diff_~D.base, diff_~D.offset := diff_#in~D.base, diff_#in~D.offset;diff_~k~0 := 0;diff_~i~0 := 0;diff_~l1~0 := diff_~Alen;diff_~l2~0 := diff_~Blen;havoc diff_~found~0; 476#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 477#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 485#L558 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem2;havoc diff_#t~mem3;diff_~found~0 := 1; 483#L558-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 481#L557-2 assume !(0 == diff_~found~0); 473#L564-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 474#L554-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 469#L558-2 [2020-11-30 00:37:01,094 INFO L796 eck$LassoCheckResult]: Loop: 469#L558-2 assume !!(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0);call diff_#t~mem2 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call diff_#t~mem3 := read~int(diff_~B.base, diff_~B.offset + 4 * diff_~j~0, 4); 468#L558 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem2;havoc diff_#t~mem3;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 469#L558-2 [2020-11-30 00:37:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:01,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1813422420, now seen corresponding path program 2 times [2020-11-30 00:37:01,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:01,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260780200] [2020-11-30 00:37:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,108 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,125 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:01,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:01,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 3 times [2020-11-30 00:37:01,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:01,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200028089] [2020-11-30 00:37:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,135 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:01,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1057777617, now seen corresponding path program 1 times [2020-11-30 00:37:01,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:37:01,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967585521] [2020-11-30 00:37:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:37:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:37:01,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:37:01,167 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:37:02,053 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 132 [2020-11-30 00:37:02,262 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-11-30 00:37:02,264 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:37:02,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:37:02,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:37:02,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:37:02,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:37:02,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:02,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:37:02,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:37:02,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-1.i_Iteration7_Lasso [2020-11-30 00:37:02,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:37:02,265 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:37:02,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,692 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-11-30 00:37:02,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:02,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:37:03,049 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-30 00:37:03,378 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-30 00:37:03,451 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:37:03,452 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) [2020-11-30 00:37:03,479 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 [2020-11-30 00:37:03,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:37:03,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:37:03,482 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 [2020-11-30 00:37:03,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,525 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 [2020-11-30 00:37:03,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:37:03,551 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 [2020-11-30 00:37:03,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,553 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:37:03,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,560 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-30 00:37:03,560 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-30 00:37:03,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/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 [2020-11-30 00:37:03,593 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 [2020-11-30 00:37:03,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,622 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 [2020-11-30 00:37:03,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,649 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 [2020-11-30 00:37:03,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,678 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 [2020-11-30 00:37:03,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,723 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 [2020-11-30 00:37:03,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,727 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:37:03,760 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 Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:37:03,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:37:03,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:37:03,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:37:03,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:37:03,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:37:03,829 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:37:03,879 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-30 00:37:03,879 INFO L444 ModelExtractionUtils]: 23 out of 73 variables were initially zero. Simplification set additionally 46 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8f76f325-bf3d-4e28-88fa-f906c1ffde31/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:37:03,881 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:37:03,884 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:37:03,884 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:37:03,885 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_diff_~B.base)_3, ULTIMATE.start_diff_~j~0, ULTIMATE.start_diff_~A.offset) = 1*v_rep(select #length ULTIMATE.start_diff_~B.base)_3 - 4*ULTIMATE.start_diff_~j~0 - 1*ULTIMATE.start_diff_~A.offset Supporting invariants [] [2020-11-30 00:37:04,008 INFO L297 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2020-11-30 00:37:04,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:37:04,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:04,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 00:37:04,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:04,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:37:04,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:37:04,124 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 00:37:04,124 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-30 00:37:04,177 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 36 states and 48 transitions. Complement of second has 8 states. [2020-11-30 00:37:04,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:37:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:37:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-30 00:37:04,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:37:04,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:04,179 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:37:04,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:04,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 00:37:04,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:04,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:37:04,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:37:04,276 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 00:37:04,276 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-30 00:37:04,349 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 36 states and 48 transitions. Complement of second has 8 states. [2020-11-30 00:37:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:37:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:37:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-30 00:37:04,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:37:04,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:04,352 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:37:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:37:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:04,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 00:37:04,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:37:04,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:37:04,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:37:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:37:04,460 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-30 00:37:04,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-30 00:37:04,531 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 34 states and 49 transitions. Complement of second has 7 states. [2020-11-30 00:37:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:37:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-30 00:37:04,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2020-11-30 00:37:04,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-30 00:37:04,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:04,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2020-11-30 00:37:04,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:04,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 12 letters. Loop has 4 letters. [2020-11-30 00:37:04,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:37:04,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 49 transitions. [2020-11-30 00:37:04,534 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:37:04,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-11-30 00:37:04,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:37:04,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:37:04,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:37:04,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:37:04,535 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:37:04,535 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:37:04,535 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:37:04,535 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-30 00:37:04,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:37:04,535 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:37:04,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:37:04,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:37:04 BoogieIcfgContainer [2020-11-30 00:37:04,539 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:37:04,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:37:04,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:37:04,540 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:37:04,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:52" (3/4) ... [2020-11-30 00:37:04,544 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:37:04,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:37:04,545 INFO L168 Benchmark]: Toolchain (without parser) took 13182.78 ms. Allocated memory was 81.8 MB in the beginning and 209.7 MB in the end (delta: 127.9 MB). Free memory was 48.1 MB in the beginning and 100.1 MB in the end (delta: -52.1 MB). Peak memory consumption was 75.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:04,546 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:37:04,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.97 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 47.9 MB in the beginning and 66.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:04,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.27 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 64.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:04,547 INFO L168 Benchmark]: Boogie Preprocessor took 58.99 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 63.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:37:04,548 INFO L168 Benchmark]: RCFGBuilder took 449.34 ms. Allocated memory is still 98.6 MB. Free memory was 63.0 MB in the beginning and 47.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:04,548 INFO L168 Benchmark]: BuchiAutomizer took 12063.03 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 46.6 MB in the beginning and 100.1 MB in the end (delta: -53.5 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:37:04,549 INFO L168 Benchmark]: Witness Printer took 4.30 ms. Allocated memory is still 209.7 MB. Free memory is still 100.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:37:04,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.97 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 47.9 MB in the beginning and 66.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.27 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 64.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.99 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 63.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 449.34 ms. Allocated memory is still 98.6 MB. Free memory was 63.0 MB in the beginning and 47.0 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12063.03 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 46.6 MB in the beginning and 100.1 MB in the end (delta: -53.5 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.30 ms. Allocated memory is still 209.7 MB. Free memory is still 100.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i + l1 and consists of 3 locations. One deterministic module has affine ranking function l2 + -1 * j and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[B] + -4 * j + -1 * A and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.0s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 10.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 121 SDtfs, 125 SDslu, 72 SDs, 0 SdLazy, 82 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital264 mio100 ax106 hnf99 lsp84 ukn88 mio100 lsp52 div100 bol100 ite100 ukn100 eq186 hnf89 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...