./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/diff-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/diff-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4654dbed0e523ad65784c661074162c44d8abe4e 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:29:57,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:29:57,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:29:57,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:29:57,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:29:57,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:29:57,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:29:57,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:29:57,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:29:57,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:29:57,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:29:57,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:29:57,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:29:57,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:29:57,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:29:57,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:29:57,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:29:57,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:29:57,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:29:57,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:29:57,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:29:57,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:29:57,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:29:57,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:29:57,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:29:57,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:29:57,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:29:57,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:29:57,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:29:57,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:29:57,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:29:57,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:29:57,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:29:57,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:29:57,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:29:57,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:29:57,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:29:57,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:29:57,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:29:57,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:29:57,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:29:57,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 15:29:58,005 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:29:58,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:29:58,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:29:58,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:29:58,006 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:29:58,007 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:29:58,007 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:29:58,007 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:29:58,007 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:29:58,007 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:29:58,007 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:29:58,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:29:58,008 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:29:58,008 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:29:58,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:29:58,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:29:58,009 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:29:58,010 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:29:58,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:29:58,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:29:58,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:29:58,010 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:29:58,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:29:58,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:29:58,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:29:58,011 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:29:58,012 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:29:58,012 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4654dbed0e523ad65784c661074162c44d8abe4e [2019-12-07 15:29:58,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:29:58,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:29:58,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:29:58,124 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:29:58,124 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:29:58,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/diff-alloca-2.i [2019-12-07 15:29:58,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/data/f255215a7/ae43344f7ed24299880bc8a8ce623a51/FLAG5da6202fa [2019-12-07 15:29:58,610 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:29:58,611 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/sv-benchmarks/c/array-memsafety/diff-alloca-2.i [2019-12-07 15:29:58,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/data/f255215a7/ae43344f7ed24299880bc8a8ce623a51/FLAG5da6202fa [2019-12-07 15:29:58,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/data/f255215a7/ae43344f7ed24299880bc8a8ce623a51 [2019-12-07 15:29:58,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:29:58,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:29:58,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:29:58,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:29:58,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:29:58,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:29:58" (1/1) ... [2019-12-07 15:29:58,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1356f157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:58, skipping insertion in model container [2019-12-07 15:29:58,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:29:58" (1/1) ... [2019-12-07 15:29:58,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:29:58,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:29:59,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:29:59,200 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:29:59,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:29:59,258 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:29:59,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59 WrapperNode [2019-12-07 15:29:59,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:29:59,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:29:59,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:29:59,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:29:59,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:29:59,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:29:59,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:29:59,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:29:59,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... [2019-12-07 15:29:59,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:29:59,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:29:59,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:29:59,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:29:59,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:29:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:29:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:29:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:29:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:29:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:29:59,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:29:59,536 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:29:59,536 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 15:29:59,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:29:59 BoogieIcfgContainer [2019-12-07 15:29:59,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:29:59,538 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:29:59,538 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:29:59,541 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:29:59,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:29:59,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:29:58" (1/3) ... [2019-12-07 15:29:59,542 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b367a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:29:59, skipping insertion in model container [2019-12-07 15:29:59,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:29:59,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:29:59" (2/3) ... [2019-12-07 15:29:59,543 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b367a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:29:59, skipping insertion in model container [2019-12-07 15:29:59,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:29:59,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:29:59" (3/3) ... [2019-12-07 15:29:59,544 INFO L371 chiAutomizerObserver]: Analyzing ICFG diff-alloca-2.i [2019-12-07 15:29:59,572 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:29:59,572 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:29:59,572 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:29:59,572 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:29:59,573 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:29:59,573 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:29:59,573 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:29:59,573 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:29:59,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-12-07 15:29:59,595 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 15:29:59,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:29:59,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:29:59,600 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 15:29:59,600 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:29:59,600 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:29:59,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2019-12-07 15:29:59,601 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-12-07 15:29:59,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:29:59,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:29:59,602 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 15:29:59,602 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:29:59,607 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 18#L539true assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 3#L539-2true assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 14#L542-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~1 := 0; 5#L549-3true [2019-12-07 15:29:59,607 INFO L796 eck$LassoCheckResult]: Loop: 5#L549-3true assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 4#L549-2true main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 5#L549-3true [2019-12-07 15:29:59,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:59,610 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 15:29:59,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:59,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147020003] [2019-12-07 15:29:59,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:29:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:29:59,710 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:29:59,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:59,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 15:29:59,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:59,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264842848] [2019-12-07 15:29:59,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:29:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:29:59,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:29:59,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:29:59,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 15:29:59,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:29:59,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588456180] [2019-12-07 15:29:59,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:29:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:29:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:29:59,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:29:59,981 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-12-07 15:30:00,060 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:00,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:00,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:00,061 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:00,061 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:00,061 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:00,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:00,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration1_Lasso [2019-12-07 15:30:00,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:00,062 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:00,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:00,478 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:00,481 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,485 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 [2019-12-07 15:30:00,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,496 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 [2019-12-07 15:30:00,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,506 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 [2019-12-07 15:30:00,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,515 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 [2019-12-07 15:30:00,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,527 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 [2019-12-07 15:30:00,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,539 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 [2019-12-07 15:30:00,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,552 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 [2019-12-07 15:30:00,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,559 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 [2019-12-07 15:30:00,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,576 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 [2019-12-07 15:30:00,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,582 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,587 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 [2019-12-07 15:30:00,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,596 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 [2019-12-07 15:30:00,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,603 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,611 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 [2019-12-07 15:30:00,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,622 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 [2019-12-07 15:30:00,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,629 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 [2019-12-07 15:30:00,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:00,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:00,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:00,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:00,637 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 [2019-12-07 15:30:00,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,649 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 [2019-12-07 15:30:00,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:00,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:00,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:00,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:00,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:00,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:00,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:00,693 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 15:30:00,693 INFO L444 ModelExtractionUtils]: 11 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:00,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:00,701 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:30:00,701 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:00,702 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~Alen~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~Alen~0 Supporting invariants [] [2019-12-07 15:30:00,726 INFO L297 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2019-12-07 15:30:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:00,759 INFO L264 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:00,760 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:00,770 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:00,770 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:00,790 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 [2019-12-07 15:30:00,791 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 3 states. [2019-12-07 15:30:00,827 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 3 states. Result 48 states and 75 transitions. Complement of second has 7 states. [2019-12-07 15:30:00,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:30:00,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2019-12-07 15:30:00,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 15:30:00,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:00,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 15:30:00,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:00,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 15:30:00,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:00,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 75 transitions. [2019-12-07 15:30:00,835 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 15:30:00,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 17 states and 25 transitions. [2019-12-07 15:30:00,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 15:30:00,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 15:30:00,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 25 transitions. [2019-12-07 15:30:00,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:00,839 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2019-12-07 15:30:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 25 transitions. [2019-12-07 15:30:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 15:30:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 15:30:00,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2019-12-07 15:30:00,857 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2019-12-07 15:30:00,857 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2019-12-07 15:30:00,857 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 15:30:00,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2019-12-07 15:30:00,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 15:30:00,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:00,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:00,859 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:00,859 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:00,859 INFO L794 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 165#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, main_~Alen~0, main_~Blen~0, main_~A~0.base, main_~A~0.offset, main_~B~0.base, main_~B~0.offset, main_~D~0.base, main_~D~0.offset;main_~Alen~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~Blen~0 := main_#t~nondet9;havoc main_#t~nondet9; 166#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 156#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 157#L542-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~A~0.base, main_~A~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(4 * main_~Blen~0);main_~B~0.base, main_~B~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~Alen~0);main_~D~0.base, main_~D~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~1 := 0; 160#L549-3 assume !(main_~i~1 < main_~Alen~0); 161#L549-4 main_~i~2 := 0; 162#L554-3 [2019-12-07 15:30:00,859 INFO L796 eck$LassoCheckResult]: Loop: 162#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 170#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 162#L554-3 [2019-12-07 15:30:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:00,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-12-07 15:30:00,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:00,859 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852540711] [2019-12-07 15:30:00,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:00,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852540711] [2019-12-07 15:30:00,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:30:00,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:30:00,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001758094] [2019-12-07 15:30:00,899 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:00,899 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-12-07 15:30:00,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:00,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202355349] [2019-12-07 15:30:00,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:00,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:00,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:00,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:30:00,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:30:00,928 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 15:30:00,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:00,949 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2019-12-07 15:30:00,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:30:00,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2019-12-07 15:30:00,950 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 15:30:00,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 25 transitions. [2019-12-07 15:30:00,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-12-07 15:30:00,951 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-12-07 15:30:00,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-12-07 15:30:00,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:00,951 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 15:30:00,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-12-07 15:30:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-12-07 15:30:00,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 15:30:00,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2019-12-07 15:30:00,952 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 15:30:00,952 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-12-07 15:30:00,952 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 15:30:00,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2019-12-07 15:30:00,953 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-12-07 15:30:00,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:00,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:00,953 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:00,954 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:00,954 INFO L794 eck$LassoCheckResult]: Stem: 210#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 207#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 208#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 198#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 199#L542-1 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;main_~i~1 := 0; 202#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 200#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 201#L549-3 assume !(main_~i~1 < main_~Alen~0); 203#L549-4 main_~i~2 := 0; 204#L554-3 [2019-12-07 15:30:00,954 INFO L796 eck$LassoCheckResult]: Loop: 204#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 211#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 204#L554-3 [2019-12-07 15:30:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2019-12-07 15:30:00,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:00,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779655497] [2019-12-07 15:30:00,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:00,976 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 2 times [2019-12-07 15:30:00,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:00,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568058052] [2019-12-07 15:30:00,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:00,982 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:00,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626574, now seen corresponding path program 1 times [2019-12-07 15:30:00,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:00,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626825572] [2019-12-07 15:30:00,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:01,013 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:01,239 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2019-12-07 15:30:01,326 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:01,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:01,327 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:01,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:01,327 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:01,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:01,327 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:01,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:01,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration3_Lasso [2019-12-07 15:30:01,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:01,327 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:01,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:01,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:01,773 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,775 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 [2019-12-07 15:30:01,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:01,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:01,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:01,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:01,782 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 [2019-12-07 15:30:01,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:01,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:01,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:01,784 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,788 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 [2019-12-07 15:30:01,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:01,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:01,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:01,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,794 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 [2019-12-07 15:30:01,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:01,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:01,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,802 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 [2019-12-07 15:30:01,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:01,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:01,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,811 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 [2019-12-07 15:30:01,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:01,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:01,815 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,819 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 [2019-12-07 15:30:01,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:01,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:01,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,830 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 [2019-12-07 15:30:01,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:01,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:01,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:01,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,836 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 [2019-12-07 15:30:01,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:01,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:01,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:01,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:01,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:01,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:01,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:01,872 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-12-07 15:30:01,872 INFO L444 ModelExtractionUtils]: 12 out of 40 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:01,875 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:01,877 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:30:01,877 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:01,877 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~2, ULTIMATE.start_main_~Blen~0) = -1*ULTIMATE.start_main_~i~2 + 1*ULTIMATE.start_main_~Blen~0 Supporting invariants [] [2019-12-07 15:30:01,910 INFO L297 tatePredicateManager]: 14 out of 14 supporting invariants were superfluous and have been removed [2019-12-07 15:30:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:01,927 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:01,928 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:01,931 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:01,931 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:01,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:01,938 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 [2019-12-07 15:30:01,938 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-12-07 15:30:01,949 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 25 states and 39 transitions. Complement of second has 6 states. [2019-12-07 15:30:01,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:01,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:30:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-12-07 15:30:01,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 15:30:01,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:01,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 15:30:01,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:01,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 9 letters. Loop has 4 letters. [2019-12-07 15:30:01,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:01,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 39 transitions. [2019-12-07 15:30:01,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 15:30:01,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 18 states and 26 transitions. [2019-12-07 15:30:01,953 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 15:30:01,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 15:30:01,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2019-12-07 15:30:01,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:01,954 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 15:30:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2019-12-07 15:30:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 15:30:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 15:30:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2019-12-07 15:30:01,956 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 15:30:01,956 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-12-07 15:30:01,956 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 15:30:01,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2019-12-07 15:30:01,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 15:30:01,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:01,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:01,957 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:01,957 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 15:30:01,958 INFO L794 eck$LassoCheckResult]: Stem: 364#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 361#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 362#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 352#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 353#L542-1 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;main_~i~1 := 0; 356#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 354#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 355#L549-3 assume !(main_~i~1 < main_~Alen~0); 357#L549-4 main_~i~2 := 0; 358#L554-3 assume !(main_~i~2 < main_~Blen~0); 368#L554-4 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; 369#L519-2 [2019-12-07 15:30:01,958 INFO L796 eck$LassoCheckResult]: Loop: 369#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 360#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 363#L522-2 assume 0 == diff_~found~0;call diff_#t~mem5 := read~int(diff_~A.base, diff_~A.offset + 4 * diff_~i~0, 4);call write~int(diff_#t~mem5, diff_~D.base, diff_~D.offset + 4 * diff_~k~0, 4);havoc diff_#t~mem5;diff_#t~post6 := diff_~k~0;diff_~k~0 := 1 + diff_#t~post6;havoc diff_#t~post6; 367#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 369#L519-2 [2019-12-07 15:30:01,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:01,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-12-07 15:30:01,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:01,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584457176] [2019-12-07 15:30:01,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:30:01,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584457176] [2019-12-07 15:30:01,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:30:01,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:30:01,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019541219] [2019-12-07 15:30:01,987 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:01,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:01,987 INFO L82 PathProgramCache]: Analyzing trace with hash 2531692, now seen corresponding path program 1 times [2019-12-07 15:30:01,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:01,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657437769] [2019-12-07 15:30:01,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:01,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:02,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:30:02,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:30:02,060 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-12-07 15:30:02,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:02,073 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2019-12-07 15:30:02,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:30:02,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2019-12-07 15:30:02,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 15:30:02,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2019-12-07 15:30:02,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-12-07 15:30:02,075 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 15:30:02,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-12-07 15:30:02,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:02,075 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 15:30:02,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-12-07 15:30:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-12-07 15:30:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 15:30:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-12-07 15:30:02,076 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 15:30:02,076 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-12-07 15:30:02,076 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 15:30:02,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-12-07 15:30:02,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 15:30:02,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:02,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:02,077 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:02,077 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 15:30:02,077 INFO L794 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 405#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 406#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 396#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 397#L542-1 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;main_~i~1 := 0; 400#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 398#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 399#L549-3 assume !(main_~i~1 < main_~Alen~0); 401#L549-4 main_~i~2 := 0; 402#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 409#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 410#L554-3 assume !(main_~i~2 < main_~Blen~0); 412#L554-4 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; 413#L519-2 [2019-12-07 15:30:02,077 INFO L796 eck$LassoCheckResult]: Loop: 413#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 404#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 407#L522-2 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; 411#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 413#L519-2 [2019-12-07 15:30:02,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-12-07 15:30:02,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170422908] [2019-12-07 15:30:02,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,101 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2531692, now seen corresponding path program 2 times [2019-12-07 15:30:02,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232319939] [2019-12-07 15:30:02,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,108 INFO L82 PathProgramCache]: Analyzing trace with hash -796463931, now seen corresponding path program 1 times [2019-12-07 15:30:02,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149414729] [2019-12-07 15:30:02,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 15:30:02,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149414729] [2019-12-07 15:30:02,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:30:02,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 15:30:02,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019065804] [2019-12-07 15:30:02,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:02,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:30:02,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:30:02,204 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 10 Second operand 5 states. [2019-12-07 15:30:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:02,229 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-07 15:30:02,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:30:02,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2019-12-07 15:30:02,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-12-07 15:30:02,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 28 transitions. [2019-12-07 15:30:02,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-12-07 15:30:02,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-12-07 15:30:02,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2019-12-07 15:30:02,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:02,232 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-12-07 15:30:02,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2019-12-07 15:30:02,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 15:30:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 15:30:02,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-12-07 15:30:02,233 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 15:30:02,233 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-12-07 15:30:02,234 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 15:30:02,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2019-12-07 15:30:02,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 15:30:02,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:02,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:02,234 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:02,234 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:30:02,234 INFO L794 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 457#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 458#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 448#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 449#L542-1 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;main_~i~1 := 0; 452#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 450#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 451#L549-3 assume !(main_~i~1 < main_~Alen~0); 453#L549-4 main_~i~2 := 0; 454#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 461#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 462#L554-3 assume !(main_~i~2 < main_~Blen~0); 465#L554-4 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; 466#L519-2 [2019-12-07 15:30:02,235 INFO L796 eck$LassoCheckResult]: Loop: 466#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 459#L523-2 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); 455#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 456#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 463#L522-2 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; 464#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 466#L519-2 [2019-12-07 15:30:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 2 times [2019-12-07 15:30:02,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397083126] [2019-12-07 15:30:02,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1860447319, now seen corresponding path program 1 times [2019-12-07 15:30:02,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417997372] [2019-12-07 15:30:02,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:02,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417997372] [2019-12-07 15:30:02,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:30:02,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 15:30:02,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309164789] [2019-12-07 15:30:02,265 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 15:30:02,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:02,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:30:02,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:30:02,265 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-12-07 15:30:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:02,280 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-07 15:30:02,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:30:02,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2019-12-07 15:30:02,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2019-12-07 15:30:02,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 32 transitions. [2019-12-07 15:30:02,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-12-07 15:30:02,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-12-07 15:30:02,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2019-12-07 15:30:02,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:02,281 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-12-07 15:30:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2019-12-07 15:30:02,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2019-12-07 15:30:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 15:30:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2019-12-07 15:30:02,283 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-12-07 15:30:02,283 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-12-07 15:30:02,283 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-12-07 15:30:02,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2019-12-07 15:30:02,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-12-07 15:30:02,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:02,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:02,284 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:02,284 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:30:02,284 INFO L794 eck$LassoCheckResult]: Stem: 512#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 509#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 510#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 499#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 500#L542-1 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;main_~i~1 := 0; 503#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 501#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 502#L549-3 assume !(main_~i~1 < main_~Alen~0); 504#L549-4 main_~i~2 := 0; 505#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 513#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 514#L554-3 assume !(main_~i~2 < main_~Blen~0); 516#L554-4 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; 517#L519-2 [2019-12-07 15:30:02,284 INFO L796 eck$LassoCheckResult]: Loop: 517#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 518#L523-2 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); 506#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 507#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 511#L522-2 assume !(0 == diff_~found~0); 515#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 517#L519-2 [2019-12-07 15:30:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 3 times [2019-12-07 15:30:02,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492896063] [2019-12-07 15:30:02,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,307 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1860447257, now seen corresponding path program 1 times [2019-12-07 15:30:02,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011291568] [2019-12-07 15:30:02,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:02,313 INFO L82 PathProgramCache]: Analyzing trace with hash -896094976, now seen corresponding path program 1 times [2019-12-07 15:30:02,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:02,314 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382661155] [2019-12-07 15:30:02,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:02,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:02,784 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 138 [2019-12-07 15:30:02,953 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-12-07 15:30:02,956 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:02,956 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:02,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:02,956 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:02,956 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:02,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:02,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:02,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:02,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration7_Lasso [2019-12-07 15:30:02,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:02,957 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:02,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:02,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:02,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:02,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,295 WARN L192 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2019-12-07 15:30:03,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:03,542 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-12-07 15:30:03,860 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:03,860 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:03,862 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 [2019-12-07 15:30:03,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:03,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:03,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:03,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:03,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:03,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:03,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:03,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:03,870 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 [2019-12-07 15:30:03,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:03,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:03,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:03,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:03,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:03,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:03,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:03,879 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 [2019-12-07 15:30:03,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:03,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:03,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:03,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:03,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:03,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:03,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:03,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:03,889 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 [2019-12-07 15:30:03,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:03,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:03,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:03,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:03,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:03,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:03,923 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:04,039 INFO L443 ModelExtractionUtils]: Simplification made 49 calls to the SMT solver. [2019-12-07 15:30:04,039 INFO L444 ModelExtractionUtils]: 14 out of 76 variables were initially zero. Simplification set additionally 57 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:04,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:04,044 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 15:30:04,044 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:04,044 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_diff_~i~0, v_rep(select #length ULTIMATE.start_diff_~A.base)_1) = -8*ULTIMATE.start_diff_~i~0 + 1*v_rep(select #length ULTIMATE.start_diff_~A.base)_1 Supporting invariants [-1*ULTIMATE.start_diff_~l1~0 + 1 >= 0] [2019-12-07 15:30:04,103 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2019-12-07 15:30:04,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 15:30:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:04,133 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:30:04,134 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:04,164 INFO L264 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:30:04,164 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:04,188 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2019-12-07 15:30:04,188 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 7 states. [2019-12-07 15:30:04,272 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 10. Second operand 7 states. Result 52 states and 70 transitions. Complement of second has 13 states. [2019-12-07 15:30:04,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 6 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 15:30:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 15:30:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 41 transitions. [2019-12-07 15:30:04,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 41 transitions. Stem has 13 letters. Loop has 6 letters. [2019-12-07 15:30:04,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:04,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 41 transitions. Stem has 19 letters. Loop has 6 letters. [2019-12-07 15:30:04,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:04,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 41 transitions. Stem has 13 letters. Loop has 12 letters. [2019-12-07 15:30:04,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:04,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 70 transitions. [2019-12-07 15:30:04,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 15:30:04,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 64 transitions. [2019-12-07 15:30:04,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 15:30:04,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-12-07 15:30:04,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 64 transitions. [2019-12-07 15:30:04,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:04,276 INFO L688 BuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2019-12-07 15:30:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 64 transitions. [2019-12-07 15:30:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2019-12-07 15:30:04,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-07 15:30:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2019-12-07 15:30:04,278 INFO L711 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2019-12-07 15:30:04,278 INFO L591 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2019-12-07 15:30:04,278 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-12-07 15:30:04,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 60 transitions. [2019-12-07 15:30:04,279 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 15:30:04,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:04,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:04,279 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:04,279 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:04,279 INFO L794 eck$LassoCheckResult]: Stem: 785#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 782#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 783#L539 assume main_~Alen~0 < 1 || main_~Alen~0 >= 536870911;main_~Alen~0 := 1; 797#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 810#L542-1 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;main_~i~1 := 0; 809#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 774#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 772#L549-3 assume !(main_~i~1 < main_~Alen~0); 773#L549-4 main_~i~2 := 0; 791#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 792#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 793#L554-3 assume !(main_~i~2 < main_~Blen~0); 794#L554-4 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; 799#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 778#L523-2 [2019-12-07 15:30:04,279 INFO L796 eck$LassoCheckResult]: Loop: 778#L523-2 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); 777#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 778#L523-2 [2019-12-07 15:30:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1055051996, now seen corresponding path program 1 times [2019-12-07 15:30:04,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:04,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081109791] [2019-12-07 15:30:04,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:04,296 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:04,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 1 times [2019-12-07 15:30:04,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:04,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751455331] [2019-12-07 15:30:04,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:04,300 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:04,300 INFO L82 PathProgramCache]: Analyzing trace with hash 292688257, now seen corresponding path program 1 times [2019-12-07 15:30:04,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:04,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534296177] [2019-12-07 15:30:04,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:04,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:04,855 WARN L192 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 152 [2019-12-07 15:30:05,063 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-12-07 15:30:05,065 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:05,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:05,065 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:05,065 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:05,065 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:05,065 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:05,065 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:05,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:05,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration8_Lasso [2019-12-07 15:30:05,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:05,066 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:05,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,470 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 114 [2019-12-07 15:30:05,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:05,823 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2019-12-07 15:30:06,115 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:06,115 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,117 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 [2019-12-07 15:30:06,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,126 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 [2019-12-07 15:30:06,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,134 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 [2019-12-07 15:30:06,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,142 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 [2019-12-07 15:30:06,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,150 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 [2019-12-07 15:30:06,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,156 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 [2019-12-07 15:30:06,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,162 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 [2019-12-07 15:30:06,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,170 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 [2019-12-07 15:30:06,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,176 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 [2019-12-07 15:30:06,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,182 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 [2019-12-07 15:30:06,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,190 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 [2019-12-07 15:30:06,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,197 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,201 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 [2019-12-07 15:30:06,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,208 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 [2019-12-07 15:30:06,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/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 [2019-12-07 15:30:06,214 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 [2019-12-07 15:30:06,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,220 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 [2019-12-07 15:30:06,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:06,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:06,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:06,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,226 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 [2019-12-07 15:30:06,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:06,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,254 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 [2019-12-07 15:30:06,256 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:06,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:06,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:06,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:06,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:06,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:06,290 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:06,363 INFO L443 ModelExtractionUtils]: Simplification made 36 calls to the SMT solver. [2019-12-07 15:30:06,363 INFO L444 ModelExtractionUtils]: 14 out of 79 variables were initially zero. Simplification set additionally 62 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:06,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:06,367 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:30:06,367 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:06,367 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_diff_~j~0, ULTIMATE.start_diff_~l2~0) = -1*ULTIMATE.start_diff_~j~0 + 1*ULTIMATE.start_diff_~l2~0 Supporting invariants [] [2019-12-07 15:30:06,454 INFO L297 tatePredicateManager]: 29 out of 29 supporting invariants were superfluous and have been removed [2019-12-07 15:30:06,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:06,472 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:06,473 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:06,477 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:06,477 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:06,483 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 [2019-12-07 15:30:06,483 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 60 transitions. cyclomatic complexity: 23 Second operand 3 states. [2019-12-07 15:30:06,495 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 60 transitions. cyclomatic complexity: 23. Second operand 3 states. Result 85 states and 114 transitions. Complement of second has 7 states. [2019-12-07 15:30:06,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:30:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2019-12-07 15:30:06,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 2 letters. [2019-12-07 15:30:06,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:06,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 2 letters. [2019-12-07 15:30:06,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:06,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 4 letters. [2019-12-07 15:30:06,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:06,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 114 transitions. [2019-12-07 15:30:06,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 15:30:06,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 67 states and 92 transitions. [2019-12-07 15:30:06,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2019-12-07 15:30:06,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2019-12-07 15:30:06,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 92 transitions. [2019-12-07 15:30:06,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:06,499 INFO L688 BuchiCegarLoop]: Abstraction has 67 states and 92 transitions. [2019-12-07 15:30:06,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 92 transitions. [2019-12-07 15:30:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2019-12-07 15:30:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 15:30:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2019-12-07 15:30:06,502 INFO L711 BuchiCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-12-07 15:30:06,502 INFO L591 BuchiCegarLoop]: Abstraction has 53 states and 74 transitions. [2019-12-07 15:30:06,502 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-12-07 15:30:06,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 74 transitions. [2019-12-07 15:30:06,503 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2019-12-07 15:30:06,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:06,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:06,503 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:06,503 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:30:06,503 INFO L794 eck$LassoCheckResult]: Stem: 1102#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1098#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 1099#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 1115#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 1135#L542-1 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;main_~i~1 := 0; 1134#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 1133#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1132#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 1091#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1089#L549-3 assume !(main_~i~1 < main_~Alen~0); 1090#L549-4 main_~i~2 := 0; 1109#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 1110#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 1111#L554-3 assume !(main_~i~2 < main_~Blen~0); 1112#L554-4 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; 1131#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 1130#L523-2 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); 1127#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 1128#L523-2 [2019-12-07 15:30:06,503 INFO L796 eck$LassoCheckResult]: Loop: 1128#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 1103#L522-2 assume !(0 == diff_~found~0); 1104#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 1116#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 1129#L523-2 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); 1124#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 1128#L523-2 [2019-12-07 15:30:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:06,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1477866981, now seen corresponding path program 1 times [2019-12-07 15:30:06,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:06,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92082793] [2019-12-07 15:30:06,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:06,527 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:06,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:06,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1646733797, now seen corresponding path program 2 times [2019-12-07 15:30:06,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:06,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645057427] [2019-12-07 15:30:06,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:06,534 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:06,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1851057333, now seen corresponding path program 2 times [2019-12-07 15:30:06,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:06,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358695181] [2019-12-07 15:30:06,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:06,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:07,385 WARN L192 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 180 [2019-12-07 15:30:07,594 WARN L192 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-12-07 15:30:07,596 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:07,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:07,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:07,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:07,596 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:07,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:07,597 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:07,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:07,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration9_Lasso [2019-12-07 15:30:07,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:07,597 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:07,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,228 WARN L192 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 120 [2019-12-07 15:30:08,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:08,587 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-12-07 15:30:08,893 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:08,893 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:08,896 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 [2019-12-07 15:30:08,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:08,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:08,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:08,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:08,901 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:08,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:08,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:08,915 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 [2019-12-07 15:30:08,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:08,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:08,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:08,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:08,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:08,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:08,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:08,924 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 [2019-12-07 15:30:08,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:08,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:08,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:08,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:08,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:08,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:08,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:08,934 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 [2019-12-07 15:30:08,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:08,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:08,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:08,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:08,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:08,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:08,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:08,942 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 [2019-12-07 15:30:08,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:08,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:08,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:08,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:08,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:08,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:08,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:08,950 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 [2019-12-07 15:30:08,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:08,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:08,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:08,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:08,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:08,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:08,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:09,036 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2019-12-07 15:30:09,036 INFO L444 ModelExtractionUtils]: 49 out of 85 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:09,038 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:09,040 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:30:09,040 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:09,040 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 [] [2019-12-07 15:30:09,108 INFO L297 tatePredicateManager]: 26 out of 26 supporting invariants were superfluous and have been removed [2019-12-07 15:30:09,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:09,129 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:09,130 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:09,135 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:09,136 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:09,146 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 15:30:09,147 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 74 transitions. cyclomatic complexity: 30 Second operand 5 states. [2019-12-07 15:30:09,160 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 74 transitions. cyclomatic complexity: 30. Second operand 5 states. Result 89 states and 127 transitions. Complement of second has 6 states. [2019-12-07 15:30:09,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:09,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 15:30:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2019-12-07 15:30:09,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 18 letters. Loop has 6 letters. [2019-12-07 15:30:09,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:09,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 24 letters. Loop has 6 letters. [2019-12-07 15:30:09,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:09,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 18 letters. Loop has 12 letters. [2019-12-07 15:30:09,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:09,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 127 transitions. [2019-12-07 15:30:09,162 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-12-07 15:30:09,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 74 states and 103 transitions. [2019-12-07 15:30:09,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-12-07 15:30:09,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-12-07 15:30:09,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 103 transitions. [2019-12-07 15:30:09,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:09,163 INFO L688 BuchiCegarLoop]: Abstraction has 74 states and 103 transitions. [2019-12-07 15:30:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 103 transitions. [2019-12-07 15:30:09,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 60. [2019-12-07 15:30:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-12-07 15:30:09,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 85 transitions. [2019-12-07 15:30:09,166 INFO L711 BuchiCegarLoop]: Abstraction has 60 states and 85 transitions. [2019-12-07 15:30:09,166 INFO L591 BuchiCegarLoop]: Abstraction has 60 states and 85 transitions. [2019-12-07 15:30:09,166 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-12-07 15:30:09,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 85 transitions. [2019-12-07 15:30:09,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:09,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:09,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:09,167 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:09,167 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:30:09,167 INFO L794 eck$LassoCheckResult]: Stem: 1443#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1439#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 1440#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 1426#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 1427#L542-1 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;main_~i~1 := 0; 1430#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 1431#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1475#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 1474#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1473#L549-3 assume !(main_~i~1 < main_~Alen~0); 1433#L549-4 main_~i~2 := 0; 1434#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 1448#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 1449#L554-3 assume !(main_~i~2 < main_~Blen~0); 1471#L554-4 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; 1470#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 1469#L523-2 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); 1465#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 1464#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 1444#L522-2 [2019-12-07 15:30:09,167 INFO L796 eck$LassoCheckResult]: Loop: 1444#L522-2 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; 1445#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 1457#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 1468#L523-2 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); 1463#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 1462#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 1444#L522-2 [2019-12-07 15:30:09,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:09,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1430763966, now seen corresponding path program 1 times [2019-12-07 15:30:09,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:09,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000770015] [2019-12-07 15:30:09,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:09,183 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:09,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:09,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1244814617, now seen corresponding path program 1 times [2019-12-07 15:30:09,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:09,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080197945] [2019-12-07 15:30:09,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:09,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash 681597668, now seen corresponding path program 1 times [2019-12-07 15:30:09,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:09,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109419180] [2019-12-07 15:30:09,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:09,211 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:09,321 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-12-07 15:30:10,059 WARN L192 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 179 [2019-12-07 15:30:10,263 WARN L192 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-12-07 15:30:10,265 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:10,265 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:10,265 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:10,266 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:10,266 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:10,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:10,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:10,266 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:10,266 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration10_Lasso [2019-12-07 15:30:10,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:10,266 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:10,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:10,882 WARN L192 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 139 [2019-12-07 15:30:11,061 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98 [2019-12-07 15:30:11,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:11,437 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2019-12-07 15:30:11,755 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-12-07 15:30:11,809 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:11,809 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,812 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 [2019-12-07 15:30:11,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,819 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 [2019-12-07 15:30:11,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,825 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 [2019-12-07 15:30:11,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,834 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 [2019-12-07 15:30:11,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,840 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 [2019-12-07 15:30:11,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,847 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 [2019-12-07 15:30:11,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,854 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 [2019-12-07 15:30:11,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,862 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 [2019-12-07 15:30:11,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,868 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 [2019-12-07 15:30:11,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,874 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 [2019-12-07 15:30:11,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,880 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 [2019-12-07 15:30:11,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,890 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 [2019-12-07 15:30:11,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,900 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 [2019-12-07 15:30:11,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,901 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 15:30:11,902 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 15:30:11,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,912 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-12-07 15:30:11,912 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 15:30:11,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,945 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 [2019-12-07 15:30:11,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,955 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 [2019-12-07 15:30:11,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:11,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:11,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:11,957 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,960 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 [2019-12-07 15:30:11,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,966 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,970 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 [2019-12-07 15:30:11,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,972 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,978 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 [2019-12-07 15:30:11,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:11,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:11,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:11,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:11,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:11,997 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 [2019-12-07 15:30:11,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:11,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:11,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:12,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:12,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:12,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:12,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:12,104 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2019-12-07 15:30:12,104 INFO L444 ModelExtractionUtils]: 45 out of 94 variables were initially zero. Simplification set additionally 44 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:12,106 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:12,108 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 15:30:12,108 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:12,108 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_diff_~l1~0, ULTIMATE.start_diff_~k~0) = 3*ULTIMATE.start_diff_~l1~0 - 2*ULTIMATE.start_diff_~k~0 Supporting invariants [3*ULTIMATE.start_diff_~i~0 - 2*ULTIMATE.start_diff_~k~0 >= 0] [2019-12-07 15:30:12,258 INFO L297 tatePredicateManager]: 38 out of 39 supporting invariants were superfluous and have been removed [2019-12-07 15:30:12,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,288 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:12,289 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,303 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:30:12,303 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:30:12,339 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2019-12-07 15:30:12,339 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 85 transitions. cyclomatic complexity: 35 Second operand 6 states. [2019-12-07 15:30:12,381 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 85 transitions. cyclomatic complexity: 35. Second operand 6 states. Result 125 states and 182 transitions. Complement of second has 9 states. [2019-12-07 15:30:12,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 15:30:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2019-12-07 15:30:12,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 19 letters. Loop has 6 letters. [2019-12-07 15:30:12,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:12,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 25 letters. Loop has 6 letters. [2019-12-07 15:30:12,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:12,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 19 letters. Loop has 12 letters. [2019-12-07 15:30:12,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:12,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 182 transitions. [2019-12-07 15:30:12,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:12,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 114 states and 163 transitions. [2019-12-07 15:30:12,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2019-12-07 15:30:12,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-12-07 15:30:12,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 163 transitions. [2019-12-07 15:30:12,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:12,386 INFO L688 BuchiCegarLoop]: Abstraction has 114 states and 163 transitions. [2019-12-07 15:30:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 163 transitions. [2019-12-07 15:30:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 95. [2019-12-07 15:30:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-12-07 15:30:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2019-12-07 15:30:12,392 INFO L711 BuchiCegarLoop]: Abstraction has 95 states and 137 transitions. [2019-12-07 15:30:12,392 INFO L591 BuchiCegarLoop]: Abstraction has 95 states and 137 transitions. [2019-12-07 15:30:12,392 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-12-07 15:30:12,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 137 transitions. [2019-12-07 15:30:12,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:12,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:12,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:12,393 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:12,393 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:12,394 INFO L794 eck$LassoCheckResult]: Stem: 1897#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1892#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 1893#L539 assume main_~Alen~0 < 1 || main_~Alen~0 >= 536870911;main_~Alen~0 := 1; 1912#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 1904#L542-1 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;main_~i~1 := 0; 1905#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 1880#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1881#L549-3 assume !(main_~i~1 < main_~Alen~0); 1884#L549-4 main_~i~2 := 0; 1906#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 1902#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 1903#L554-3 assume !(main_~i~2 < main_~Blen~0); 1910#L554-4 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; 1911#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 1915#L523-2 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); 1952#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 1960#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 1958#L522-2 assume !(0 == diff_~found~0); 1947#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 1940#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 1888#L523-2 [2019-12-07 15:30:12,394 INFO L796 eck$LassoCheckResult]: Loop: 1888#L523-2 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); 1887#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 1888#L523-2 [2019-12-07 15:30:12,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,394 INFO L82 PathProgramCache]: Analyzing trace with hash -14995722, now seen corresponding path program 1 times [2019-12-07 15:30:12,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510982624] [2019-12-07 15:30:12,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 15:30:12,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510982624] [2019-12-07 15:30:12,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697068553] [2019-12-07 15:30:12,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:30:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,464 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:30:12,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 15:30:12,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 15:30:12,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-12-07 15:30:12,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591627832] [2019-12-07 15:30:12,481 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:12,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 2 times [2019-12-07 15:30:12,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909032585] [2019-12-07 15:30:12,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:12,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:12,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:30:12,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:30:12,517 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. cyclomatic complexity: 55 Second operand 5 states. [2019-12-07 15:30:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:12,547 INFO L93 Difference]: Finished difference Result 114 states and 160 transitions. [2019-12-07 15:30:12,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:30:12,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 160 transitions. [2019-12-07 15:30:12,548 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:12,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 90 states and 129 transitions. [2019-12-07 15:30:12,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 15:30:12,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-12-07 15:30:12,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 129 transitions. [2019-12-07 15:30:12,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:12,549 INFO L688 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2019-12-07 15:30:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 129 transitions. [2019-12-07 15:30:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-12-07 15:30:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-12-07 15:30:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2019-12-07 15:30:12,552 INFO L711 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2019-12-07 15:30:12,552 INFO L591 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2019-12-07 15:30:12,552 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-12-07 15:30:12,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 129 transitions. [2019-12-07 15:30:12,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:12,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:12,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:12,553 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:12,553 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:12,554 INFO L794 eck$LassoCheckResult]: Stem: 2177#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2173#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 2174#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 2160#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 2161#L542-1 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;main_~i~1 := 0; 2164#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2165#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2214#L549-3 assume !(main_~i~1 < main_~Alen~0); 2212#L549-4 main_~i~2 := 0; 2210#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 2186#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 2184#L554-3 assume !(main_~i~2 < main_~Blen~0); 2185#L554-4 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; 2187#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2191#L523-2 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); 2231#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 2243#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 2240#L522-2 assume !(0 == diff_~found~0); 2222#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 2223#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2216#L523-2 [2019-12-07 15:30:12,554 INFO L796 eck$LassoCheckResult]: Loop: 2216#L523-2 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); 2217#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 2216#L523-2 [2019-12-07 15:30:12,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,554 INFO L82 PathProgramCache]: Analyzing trace with hash -2009140428, now seen corresponding path program 3 times [2019-12-07 15:30:12,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971980396] [2019-12-07 15:30:12,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:30:12,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971980396] [2019-12-07 15:30:12,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737752730] [2019-12-07 15:30:12,599 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:30:12,632 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-12-07 15:30:12,632 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 15:30:12,633 INFO L264 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:30:12,634 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 15:30:12,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:30:12,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2019-12-07 15:30:12,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668567175] [2019-12-07 15:30:12,669 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:12,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 3 times [2019-12-07 15:30:12,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961854347] [2019-12-07 15:30:12,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:12,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:12,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 15:30:12,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-12-07 15:30:12,705 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. cyclomatic complexity: 51 Second operand 13 states. [2019-12-07 15:30:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:12,764 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2019-12-07 15:30:12,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:30:12,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 107 transitions. [2019-12-07 15:30:12,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:12,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 60 states and 83 transitions. [2019-12-07 15:30:12,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-12-07 15:30:12,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-12-07 15:30:12,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 83 transitions. [2019-12-07 15:30:12,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:12,766 INFO L688 BuchiCegarLoop]: Abstraction has 60 states and 83 transitions. [2019-12-07 15:30:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 83 transitions. [2019-12-07 15:30:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2019-12-07 15:30:12,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-12-07 15:30:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2019-12-07 15:30:12,768 INFO L711 BuchiCegarLoop]: Abstraction has 59 states and 82 transitions. [2019-12-07 15:30:12,768 INFO L591 BuchiCegarLoop]: Abstraction has 59 states and 82 transitions. [2019-12-07 15:30:12,768 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-12-07 15:30:12,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 82 transitions. [2019-12-07 15:30:12,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-12-07 15:30:12,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:12,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:12,769 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:12,769 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:30:12,769 INFO L794 eck$LassoCheckResult]: Stem: 2425#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2421#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 2422#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 2408#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 2409#L542-1 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;main_~i~1 := 0; 2412#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2410#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2411#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2413#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2439#L549-3 assume !(main_~i~1 < main_~Alen~0); 2414#L549-4 main_~i~2 := 0; 2415#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 2426#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 2427#L554-3 assume !(main_~i~2 < main_~Blen~0); 2432#L554-4 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; 2433#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2437#L523-2 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); 2444#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 2442#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 2443#L522-2 assume !(0 == diff_~found~0); 2429#L529-1 [2019-12-07 15:30:12,769 INFO L796 eck$LassoCheckResult]: Loop: 2429#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 2434#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2446#L523-2 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); 2441#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 2440#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 2428#L522-2 assume !(0 == diff_~found~0); 2429#L529-1 [2019-12-07 15:30:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1404010061, now seen corresponding path program 1 times [2019-12-07 15:30:12,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431787583] [2019-12-07 15:30:12,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 15:30:12,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431787583] [2019-12-07 15:30:12,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:30:12,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:30:12,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395004352] [2019-12-07 15:30:12,781 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1153113315, now seen corresponding path program 1 times [2019-12-07 15:30:12,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733246977] [2019-12-07 15:30:12,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 15:30:12,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733246977] [2019-12-07 15:30:12,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:30:12,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:30:12,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121416953] [2019-12-07 15:30:12,787 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 15:30:12,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:12,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:30:12,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:30:12,788 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. cyclomatic complexity: 31 Second operand 3 states. [2019-12-07 15:30:12,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:12,794 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2019-12-07 15:30:12,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:30:12,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2019-12-07 15:30:12,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:12,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 52 states and 69 transitions. [2019-12-07 15:30:12,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2019-12-07 15:30:12,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-12-07 15:30:12,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 69 transitions. [2019-12-07 15:30:12,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:12,796 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-12-07 15:30:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 69 transitions. [2019-12-07 15:30:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 15:30:12,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 15:30:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2019-12-07 15:30:12,798 INFO L711 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-12-07 15:30:12,798 INFO L591 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-12-07 15:30:12,798 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-12-07 15:30:12,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2019-12-07 15:30:12,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:12,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:12,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:12,799 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:12,799 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:12,799 INFO L794 eck$LassoCheckResult]: Stem: 2546#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2541#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 2542#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 2528#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 2529#L542-1 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;main_~i~1 := 0; 2532#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2530#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2531#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2533#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2558#L549-3 assume !(main_~i~1 < main_~Alen~0); 2534#L549-4 main_~i~2 := 0; 2535#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 2547#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 2548#L554-3 assume !(main_~i~2 < main_~Blen~0); 2552#L554-4 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; 2553#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2556#L523-2 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); 2560#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 2566#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 2576#L522-2 assume !(0 == diff_~found~0); 2551#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 2574#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2567#L523-2 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); 2536#L523 [2019-12-07 15:30:12,799 INFO L796 eck$LassoCheckResult]: Loop: 2536#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 2537#L523-2 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); 2536#L523 [2019-12-07 15:30:12,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1879951125, now seen corresponding path program 4 times [2019-12-07 15:30:12,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694661738] [2019-12-07 15:30:12,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,821 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:12,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,821 INFO L82 PathProgramCache]: Analyzing trace with hash 3068, now seen corresponding path program 4 times [2019-12-07 15:30:12,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470487636] [2019-12-07 15:30:12,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:12,826 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:12,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:12,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1548202598, now seen corresponding path program 1 times [2019-12-07 15:30:12,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:12,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767791410] [2019-12-07 15:30:12,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-07 15:30:12,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767791410] [2019-12-07 15:30:12,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96375578] [2019-12-07 15:30:12,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:30:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:12,920 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:30:12,921 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 15:30:12,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:30:12,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2019-12-07 15:30:12,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764303110] [2019-12-07 15:30:12,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:12,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-12-07 15:30:12,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2019-12-07 15:30:12,992 INFO L87 Difference]: Start difference. First operand 52 states and 69 transitions. cyclomatic complexity: 25 Second operand 15 states. [2019-12-07 15:30:13,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:13,097 INFO L93 Difference]: Finished difference Result 103 states and 130 transitions. [2019-12-07 15:30:13,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 15:30:13,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 130 transitions. [2019-12-07 15:30:13,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:13,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 55 states and 71 transitions. [2019-12-07 15:30:13,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2019-12-07 15:30:13,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-12-07 15:30:13,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 71 transitions. [2019-12-07 15:30:13,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:13,099 INFO L688 BuchiCegarLoop]: Abstraction has 55 states and 71 transitions. [2019-12-07 15:30:13,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 71 transitions. [2019-12-07 15:30:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-12-07 15:30:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-12-07 15:30:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2019-12-07 15:30:13,100 INFO L711 BuchiCegarLoop]: Abstraction has 54 states and 70 transitions. [2019-12-07 15:30:13,100 INFO L591 BuchiCegarLoop]: Abstraction has 54 states and 70 transitions. [2019-12-07 15:30:13,100 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-12-07 15:30:13,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 70 transitions. [2019-12-07 15:30:13,101 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:13,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:13,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:13,101 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:13,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:13,101 INFO L794 eck$LassoCheckResult]: Stem: 2802#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2798#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 2799#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 2785#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 2786#L542-1 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;main_~i~1 := 0; 2789#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2787#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2788#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 2790#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2816#L549-3 assume !(main_~i~1 < main_~Alen~0); 2791#L549-4 main_~i~2 := 0; 2792#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 2808#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 2809#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 2803#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 2804#L554-3 assume !(main_~i~2 < main_~Blen~0); 2810#L554-4 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; 2811#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2813#L523-2 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); 2818#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 2817#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 2805#L522-2 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; 2806#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 2826#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 2821#L523-2 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); 2820#L523 [2019-12-07 15:30:13,101 INFO L796 eck$LassoCheckResult]: Loop: 2820#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 2819#L523-2 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); 2820#L523 [2019-12-07 15:30:13,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:13,102 INFO L82 PathProgramCache]: Analyzing trace with hash -313082227, now seen corresponding path program 2 times [2019-12-07 15:30:13,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:13,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895771289] [2019-12-07 15:30:13,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 15:30:13,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895771289] [2019-12-07 15:30:13,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196986788] [2019-12-07 15:30:13,157 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:30:13,194 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 15:30:13,195 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 15:30:13,195 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:13,197 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 15:30:13,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:30:13,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2019-12-07 15:30:13,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989433725] [2019-12-07 15:30:13,235 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:13,235 INFO L82 PathProgramCache]: Analyzing trace with hash 3068, now seen corresponding path program 5 times [2019-12-07 15:30:13,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:13,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805214508] [2019-12-07 15:30:13,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,238 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:13,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:13,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 15:30:13,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-12-07 15:30:13,274 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. cyclomatic complexity: 24 Second operand 14 states. [2019-12-07 15:30:13,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:13,352 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2019-12-07 15:30:13,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 15:30:13,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 99 transitions. [2019-12-07 15:30:13,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:13,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 74 states and 99 transitions. [2019-12-07 15:30:13,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-12-07 15:30:13,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-12-07 15:30:13,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 99 transitions. [2019-12-07 15:30:13,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:13,353 INFO L688 BuchiCegarLoop]: Abstraction has 74 states and 99 transitions. [2019-12-07 15:30:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 99 transitions. [2019-12-07 15:30:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 60. [2019-12-07 15:30:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-12-07 15:30:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2019-12-07 15:30:13,355 INFO L711 BuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2019-12-07 15:30:13,355 INFO L591 BuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2019-12-07 15:30:13,355 INFO L424 BuchiCegarLoop]: ======== Iteration 16============ [2019-12-07 15:30:13,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2019-12-07 15:30:13,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:13,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:13,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:13,356 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:13,356 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:13,356 INFO L794 eck$LassoCheckResult]: Stem: 3031#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3025#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 3026#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 3012#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 3013#L542-1 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;main_~i~1 := 0; 3016#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 3014#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3015#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 3017#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3045#L549-3 assume !(main_~i~1 < main_~Alen~0); 3018#L549-4 main_~i~2 := 0; 3019#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 3038#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 3039#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 3032#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 3033#L554-3 assume !(main_~i~2 < main_~Blen~0); 3040#L554-4 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; 3041#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 3043#L523-2 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); 3048#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 3055#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 3056#L522-2 assume !(0 == diff_~found~0); 3063#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 3064#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 3060#L523-2 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); 3020#L523 [2019-12-07 15:30:13,356 INFO L796 eck$LassoCheckResult]: Loop: 3020#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 3021#L523-2 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); 3020#L523 [2019-12-07 15:30:13,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:13,356 INFO L82 PathProgramCache]: Analyzing trace with hash -370280947, now seen corresponding path program 5 times [2019-12-07 15:30:13,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:13,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806684453] [2019-12-07 15:30:13,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,378 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:13,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:13,379 INFO L82 PathProgramCache]: Analyzing trace with hash 3068, now seen corresponding path program 6 times [2019-12-07 15:30:13,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:13,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598104871] [2019-12-07 15:30:13,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,383 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:13,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:13,384 INFO L82 PathProgramCache]: Analyzing trace with hash 642297608, now seen corresponding path program 2 times [2019-12-07 15:30:13,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:13,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552129044] [2019-12-07 15:30:13,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:13,403 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:14,552 WARN L192 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 271 DAG size of output: 210 [2019-12-07 15:30:14,806 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-12-07 15:30:14,808 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:14,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:14,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:14,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:14,808 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:14,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:14,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:14,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:14,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration16_Lasso [2019-12-07 15:30:14,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:14,808 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:14,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:14,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:15,333 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 125 [2019-12-07 15:30:15,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:15,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:15,640 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-12-07 15:30:15,983 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:15,983 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:15,986 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 [2019-12-07 15:30:15,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:15,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:15,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:15,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:15,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:15,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:15,990 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:15,994 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 [2019-12-07 15:30:15,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:15,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:15,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:15,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:15,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:15,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:15,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,002 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 [2019-12-07 15:30:16,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,004 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,004 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,010 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 [2019-12-07 15:30:16,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,016 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 [2019-12-07 15:30:16,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:16,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,028 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 [2019-12-07 15:30:16,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,036 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 [2019-12-07 15:30:16,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,042 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 [2019-12-07 15:30:16,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,047 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,051 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 [2019-12-07 15:30:16,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,057 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 [2019-12-07 15:30:16,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,070 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 [2019-12-07 15:30:16,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,076 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 [2019-12-07 15:30:16,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,084 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 [2019-12-07 15:30:16,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:16,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,100 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 [2019-12-07 15:30:16,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,107 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 [2019-12-07 15:30:16,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:16,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:16,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:16,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:16,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,118 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 [2019-12-07 15:30:16,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:16,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:16,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:16,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:16,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:16,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:16,150 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:16,183 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 15:30:16,183 INFO L444 ModelExtractionUtils]: 45 out of 82 variables were initially zero. Simplification set additionally 32 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:16,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:16,187 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 15:30:16,187 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:16,187 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~A~0.base)_6, ULTIMATE.start_diff_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~A~0.base)_6 - 2*ULTIMATE.start_diff_~j~0 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~A~0.base)_6 - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_7 >= 0] [2019-12-07 15:30:16,290 INFO L297 tatePredicateManager]: 31 out of 34 supporting invariants were superfluous and have been removed [2019-12-07 15:30:16,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 15:30:16,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:16,336 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 41 conjunts are in the unsatisfiable core [2019-12-07 15:30:16,337 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:16,348 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_308|], 4=[|v_#valid_352|]} [2019-12-07 15:30:16,356 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:16,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:16,357 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:16,366 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2019-12-07 15:30:16,366 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:30:16,381 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:16,392 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:16,392 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 15:30:16,392 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:30:16,407 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:16,411 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:30:16,411 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:51, output treesize:54 [2019-12-07 15:30:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:16,947 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:16,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:16,972 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.12 stem predicates 2 loop predicates [2019-12-07 15:30:16,972 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 27 Second operand 14 states. [2019-12-07 15:30:17,559 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-12-07 15:30:17,990 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 27. Second operand 14 states. Result 68 states and 89 transitions. Complement of second has 11 states. [2019-12-07 15:30:17,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:17,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 15:30:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 28 transitions. [2019-12-07 15:30:17,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 28 transitions. Stem has 25 letters. Loop has 2 letters. [2019-12-07 15:30:17,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:17,992 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:30:18,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:18,066 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 41 conjunts are in the unsatisfiable core [2019-12-07 15:30:18,068 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:18,073 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_309|], 4=[|v_#valid_353|]} [2019-12-07 15:30:18,080 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:18,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:18,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:18,084 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2019-12-07 15:30:18,084 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:30:18,107 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:18,116 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:18,116 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 15:30:18,117 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:30:18,132 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:18,133 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:30:18,133 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:51, output treesize:54 [2019-12-07 15:30:18,460 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-12-07 15:30:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:18,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:18,802 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:18,833 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.13 stem predicates 2 loop predicates [2019-12-07 15:30:18,833 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 27 Second operand 15 states. [2019-12-07 15:30:19,391 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-12-07 15:30:19,818 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 27. Second operand 15 states. Result 68 states and 89 transitions. Complement of second has 12 states. [2019-12-07 15:30:19,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 10 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 15:30:19,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 28 transitions. [2019-12-07 15:30:19,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 28 transitions. Stem has 25 letters. Loop has 2 letters. [2019-12-07 15:30:19,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:19,820 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:30:19,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:19,859 INFO L264 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 41 conjunts are in the unsatisfiable core [2019-12-07 15:30:19,860 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:19,865 INFO L430 ElimStorePlain]: Different costs {0=[|v_#length_310|], 4=[|v_#valid_354|]} [2019-12-07 15:30:19,869 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:19,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:19,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 15:30:19,872 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2019-12-07 15:30:19,872 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 15:30:19,888 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:19,906 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:19,906 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-12-07 15:30:19,907 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 15:30:19,921 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 15:30:19,922 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 15:30:19,922 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:51, output treesize:54 [2019-12-07 15:30:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:20,589 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:20,590 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:20,618 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.13 stem predicates 2 loop predicates [2019-12-07 15:30:20,618 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 27 Second operand 15 states. [2019-12-07 15:30:21,961 WARN L192 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-12-07 15:30:22,952 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 27. Second operand 15 states. Result 168 states and 223 transitions. Complement of second has 23 states. [2019-12-07 15:30:22,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 19 states 15 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 15:30:22,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 15:30:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 76 transitions. [2019-12-07 15:30:22,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 76 transitions. Stem has 25 letters. Loop has 2 letters. [2019-12-07 15:30:22,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:22,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 76 transitions. Stem has 27 letters. Loop has 2 letters. [2019-12-07 15:30:22,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:22,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 76 transitions. Stem has 25 letters. Loop has 4 letters. [2019-12-07 15:30:22,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:22,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 223 transitions. [2019-12-07 15:30:22,954 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-12-07 15:30:22,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 147 states and 195 transitions. [2019-12-07 15:30:22,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-12-07 15:30:22,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-12-07 15:30:22,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 195 transitions. [2019-12-07 15:30:22,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:22,956 INFO L688 BuchiCegarLoop]: Abstraction has 147 states and 195 transitions. [2019-12-07 15:30:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 195 transitions. [2019-12-07 15:30:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 89. [2019-12-07 15:30:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-12-07 15:30:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 122 transitions. [2019-12-07 15:30:22,958 INFO L711 BuchiCegarLoop]: Abstraction has 89 states and 122 transitions. [2019-12-07 15:30:22,958 INFO L591 BuchiCegarLoop]: Abstraction has 89 states and 122 transitions. [2019-12-07 15:30:22,958 INFO L424 BuchiCegarLoop]: ======== Iteration 17============ [2019-12-07 15:30:22,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 122 transitions. [2019-12-07 15:30:22,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:22,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:22,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:22,959 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:22,959 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:22,959 INFO L794 eck$LassoCheckResult]: Stem: 3941#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3935#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 3936#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 3922#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 3923#L542-1 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;main_~i~1 := 0; 3926#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 3927#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3928#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 3924#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3925#L549-3 assume !(main_~i~1 < main_~Alen~0); 3929#L549-4 main_~i~2 := 0; 3930#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 3948#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 3949#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 3946#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 3947#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 3958#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 3956#L554-3 assume !(main_~i~2 < main_~Blen~0); 3957#L554-4 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; 3953#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 3954#L523-2 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); 3976#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 3990#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 3989#L522-2 assume !(0 == diff_~found~0); 3945#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 3952#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 3991#L523-2 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); 3970#L523 [2019-12-07 15:30:22,959 INFO L796 eck$LassoCheckResult]: Loop: 3970#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 3971#L523-2 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); 3970#L523 [2019-12-07 15:30:22,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:22,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1276185937, now seen corresponding path program 6 times [2019-12-07 15:30:22,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:22,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652024524] [2019-12-07 15:30:22,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:22,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:22,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:22,977 INFO L82 PathProgramCache]: Analyzing trace with hash 3068, now seen corresponding path program 7 times [2019-12-07 15:30:22,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:22,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234027279] [2019-12-07 15:30:22,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:22,980 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:22,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1945963306, now seen corresponding path program 3 times [2019-12-07 15:30:22,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:22,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625629268] [2019-12-07 15:30:22,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:22,998 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:24,263 WARN L192 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 288 DAG size of output: 221 [2019-12-07 15:30:24,541 WARN L192 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-12-07 15:30:24,543 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:24,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:24,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:24,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:24,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:24,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:24,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:24,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:24,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration17_Lasso [2019-12-07 15:30:24,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:24,544 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:24,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:24,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:25,016 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 123 [2019-12-07 15:30:25,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:25,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:25,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:25,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:25,378 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-12-07 15:30:25,695 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:25,695 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,697 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 [2019-12-07 15:30:25,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,705 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 [2019-12-07 15:30:25,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,714 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 [2019-12-07 15:30:25,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,720 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 [2019-12-07 15:30:25,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,727 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 [2019-12-07 15:30:25,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,735 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 [2019-12-07 15:30:25,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:25,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,748 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 [2019-12-07 15:30:25,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,751 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,754 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 [2019-12-07 15:30:25,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,757 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,760 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 [2019-12-07 15:30:25,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,768 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 [2019-12-07 15:30:25,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,775 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 [2019-12-07 15:30:25,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,777 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,781 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 [2019-12-07 15:30:25,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:25,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:25,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:25,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,786 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 [2019-12-07 15:30:25,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,795 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 [2019-12-07 15:30:25,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:25,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,811 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 [2019-12-07 15:30:25,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,830 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 [2019-12-07 15:30:25,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,838 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 [2019-12-07 15:30:25,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:25,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:25,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:25,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:25,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:25,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:25,874 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:25,946 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2019-12-07 15:30:25,946 INFO L444 ModelExtractionUtils]: 45 out of 82 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:25,948 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:25,950 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:30:25,950 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:25,950 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~B~0.base)_6, ULTIMATE.start_diff_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~B~0.base)_6 - 4*ULTIMATE.start_diff_~j~0 Supporting invariants [] [2019-12-07 15:30:26,059 INFO L297 tatePredicateManager]: 27 out of 30 supporting invariants were superfluous and have been removed [2019-12-07 15:30:26,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 15:30:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,099 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,100 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,140 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,140 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:26,155 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-12-07 15:30:26,155 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 122 transitions. cyclomatic complexity: 44 Second operand 6 states. [2019-12-07 15:30:26,216 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 122 transitions. cyclomatic complexity: 44. Second operand 6 states. Result 93 states and 126 transitions. Complement of second has 5 states. [2019-12-07 15:30:26,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:26,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 15:30:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 15:30:26,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 27 letters. Loop has 2 letters. [2019-12-07 15:30:26,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:26,217 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:30:26,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,275 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,276 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,357 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,357 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:26,373 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2019-12-07 15:30:26,373 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 122 transitions. cyclomatic complexity: 44 Second operand 6 states. [2019-12-07 15:30:26,418 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 122 transitions. cyclomatic complexity: 44. Second operand 6 states. Result 93 states and 126 transitions. Complement of second has 5 states. [2019-12-07 15:30:26,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 15:30:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-12-07 15:30:26,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 27 letters. Loop has 2 letters. [2019-12-07 15:30:26,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:26,419 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:30:26,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,465 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,466 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,506 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,506 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:26,521 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-12-07 15:30:26,521 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 122 transitions. cyclomatic complexity: 44 Second operand 6 states. [2019-12-07 15:30:26,642 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 122 transitions. cyclomatic complexity: 44. Second operand 6 states. Result 154 states and 216 transitions. Complement of second has 11 states. [2019-12-07 15:30:26,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2019-12-07 15:30:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 15:30:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 47 transitions. [2019-12-07 15:30:26,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 47 transitions. Stem has 27 letters. Loop has 2 letters. [2019-12-07 15:30:26,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:26,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 47 transitions. Stem has 29 letters. Loop has 2 letters. [2019-12-07 15:30:26,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:26,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 47 transitions. Stem has 27 letters. Loop has 4 letters. [2019-12-07 15:30:26,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:26,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 216 transitions. [2019-12-07 15:30:26,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:26,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 128 states and 172 transitions. [2019-12-07 15:30:26,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-12-07 15:30:26,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-12-07 15:30:26,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 172 transitions. [2019-12-07 15:30:26,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:26,646 INFO L688 BuchiCegarLoop]: Abstraction has 128 states and 172 transitions. [2019-12-07 15:30:26,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 172 transitions. [2019-12-07 15:30:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 76. [2019-12-07 15:30:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 15:30:26,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 103 transitions. [2019-12-07 15:30:26,648 INFO L711 BuchiCegarLoop]: Abstraction has 76 states and 103 transitions. [2019-12-07 15:30:26,648 INFO L591 BuchiCegarLoop]: Abstraction has 76 states and 103 transitions. [2019-12-07 15:30:26,648 INFO L424 BuchiCegarLoop]: ======== Iteration 18============ [2019-12-07 15:30:26,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 103 transitions. [2019-12-07 15:30:26,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:26,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:26,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:26,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:26,649 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:26,650 INFO L794 eck$LassoCheckResult]: Stem: 4823#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4817#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 4818#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 4803#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 4804#L542-1 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;main_~i~1 := 0; 4807#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 4808#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 4809#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 4805#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 4806#L549-3 assume !(main_~i~1 < main_~Alen~0); 4810#L549-4 main_~i~2 := 0; 4811#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 4831#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 4832#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 4824#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 4825#L554-3 assume !(main_~i~2 < main_~Blen~0); 4833#L554-4 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; 4834#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 4836#L523-2 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); 4812#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 4813#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 4828#L522-2 assume !(0 == diff_~found~0); 4829#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 4835#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 4821#L523-2 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); 4822#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 4854#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 4852#L522-2 assume !(0 == diff_~found~0); 4853#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 4870#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 4857#L523-2 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); 4841#L523 [2019-12-07 15:30:26,650 INFO L796 eck$LassoCheckResult]: Loop: 4841#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 4842#L523-2 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); 4841#L523 [2019-12-07 15:30:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:26,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1634159155, now seen corresponding path program 7 times [2019-12-07 15:30:26,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:26,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530444653] [2019-12-07 15:30:26,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 15:30:26,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530444653] [2019-12-07 15:30:26,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036183421] [2019-12-07 15:30:26,729 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:30:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:26,776 INFO L264 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:30:26,777 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 15:30:26,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:30:26,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2019-12-07 15:30:26,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671864843] [2019-12-07 15:30:26,846 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 15:30:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:26,846 INFO L82 PathProgramCache]: Analyzing trace with hash 3068, now seen corresponding path program 8 times [2019-12-07 15:30:26,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:26,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143932550] [2019-12-07 15:30:26,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:26,850 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:26,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:30:26,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-12-07 15:30:26,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-12-07 15:30:26,890 INFO L87 Difference]: Start difference. First operand 76 states and 103 transitions. cyclomatic complexity: 37 Second operand 17 states. [2019-12-07 15:30:27,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:30:27,017 INFO L93 Difference]: Finished difference Result 129 states and 168 transitions. [2019-12-07 15:30:27,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 15:30:27,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 168 transitions. [2019-12-07 15:30:27,018 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:27,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 79 states and 106 transitions. [2019-12-07 15:30:27,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-12-07 15:30:27,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-12-07 15:30:27,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 106 transitions. [2019-12-07 15:30:27,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 15:30:27,019 INFO L688 BuchiCegarLoop]: Abstraction has 79 states and 106 transitions. [2019-12-07 15:30:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 106 transitions. [2019-12-07 15:30:27,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2019-12-07 15:30:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 15:30:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 105 transitions. [2019-12-07 15:30:27,020 INFO L711 BuchiCegarLoop]: Abstraction has 78 states and 105 transitions. [2019-12-07 15:30:27,020 INFO L591 BuchiCegarLoop]: Abstraction has 78 states and 105 transitions. [2019-12-07 15:30:27,020 INFO L424 BuchiCegarLoop]: ======== Iteration 19============ [2019-12-07 15:30:27,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 105 transitions. [2019-12-07 15:30:27,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:30:27,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:30:27,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:30:27,021 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:30:27,021 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:30:27,022 INFO L794 eck$LassoCheckResult]: Stem: 5145#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5139#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_#t~nondet14, main_#t~post13, main_~i~1, main_#t~nondet16, main_#t~post15, main_~i~2, 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; 5140#L539 assume !(main_~Alen~0 < 1 || main_~Alen~0 >= 536870911); 5126#L539-2 assume !(main_~Blen~0 < 1 || main_~Blen~0 >= 536870911); 5127#L542-1 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;main_~i~1 := 0; 5130#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 5128#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 5129#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 5167#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 5131#L549-3 assume !!(main_~i~1 < main_~Alen~0);call write~int(main_#t~nondet14, main_~A~0.base, main_~A~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet14; 5132#L549-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 5160#L549-3 assume !(main_~i~1 < main_~Alen~0); 5133#L549-4 main_~i~2 := 0; 5134#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 5146#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 5147#L554-3 assume !!(main_~i~2 < main_~Blen~0);call write~int(main_#t~nondet16, main_~B~0.base, main_~B~0.offset + 4 * main_~i~2, 4);havoc main_#t~nondet16; 5152#L554-2 main_#t~post15 := main_~i~2;main_~i~2 := 1 + main_#t~post15;havoc main_#t~post15; 5161#L554-3 assume !(main_~i~2 < main_~Blen~0); 5153#L554-4 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; 5154#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 5157#L523-2 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); 5164#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 5179#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 5180#L522-2 assume !(0 == diff_~found~0); 5187#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 5186#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 5137#L523-2 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); 5138#L523 assume diff_#t~mem2 == diff_#t~mem3;havoc diff_#t~mem3;havoc diff_#t~mem2;diff_~found~0 := 1; 5136#L523-2 assume !(diff_~j~0 < diff_~l2~0 && 0 == diff_~found~0); 5150#L522-2 assume !(0 == diff_~found~0); 5151#L529-1 diff_#t~post7 := diff_~i~0;diff_~i~0 := 1 + diff_#t~post7;havoc diff_#t~post7; 5201#L519-2 assume !!(diff_~i~0 < diff_~l1~0);diff_~j~0 := 0;diff_~found~0 := 0; 5185#L523-2 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); 5168#L523 [2019-12-07 15:30:27,022 INFO L796 eck$LassoCheckResult]: Loop: 5168#L523 assume !(diff_#t~mem2 == diff_#t~mem3);havoc diff_#t~mem3;havoc diff_#t~mem2;diff_#t~post4 := diff_~j~0;diff_~j~0 := 1 + diff_#t~post4;havoc diff_#t~post4; 5169#L523-2 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); 5168#L523 [2019-12-07 15:30:27,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:27,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1336656619, now seen corresponding path program 8 times [2019-12-07 15:30:27,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:27,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146305807] [2019-12-07 15:30:27,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:27,039 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:27,039 INFO L82 PathProgramCache]: Analyzing trace with hash 3068, now seen corresponding path program 9 times [2019-12-07 15:30:27,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:27,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667295633] [2019-12-07 15:30:27,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:27,042 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:27,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:27,042 INFO L82 PathProgramCache]: Analyzing trace with hash -331787248, now seen corresponding path program 4 times [2019-12-07 15:30:27,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:30:27,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747995950] [2019-12-07 15:30:27,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:30:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:30:27,060 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:30:28,936 WARN L192 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 324 DAG size of output: 241 [2019-12-07 15:30:29,281 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-12-07 15:30:29,284 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:30:29,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:30:29,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:30:29,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:30:29,284 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:30:29,284 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:29,284 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:30:29,284 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:30:29,284 INFO L133 ssoRankerPreferences]: Filename of dumped script: diff-alloca-2.i_Iteration19_Lasso [2019-12-07 15:30:29,284 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:30:29,284 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:30:29,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,748 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 123 [2019-12-07 15:30:29,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:29,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:30:30,119 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-12-07 15:30:30,399 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:30:30,399 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,401 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 [2019-12-07 15:30:30,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:30,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:30:30,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:30,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:30,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:30,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:30:30,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:30:30,404 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,407 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 [2019-12-07 15:30:30,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:30,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:30,408 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-12-07 15:30:30,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:30,413 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-12-07 15:30:30,413 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 15:30:30,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:30:30,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:30,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:30,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:30,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:30,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:30,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:30,442 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,446 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 [2019-12-07 15:30:30,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:30,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:30,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:30,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:30,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:30,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:30,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,454 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 [2019-12-07 15:30:30,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:30,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:30,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:30,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:30,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:30,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:30,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 130 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,473 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 [2019-12-07 15:30:30,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:30:30,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:30:30,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:30:30,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:30:30,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:30:30,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:30:30,505 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:30:30,535 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 15:30:30,535 INFO L444 ModelExtractionUtils]: 45 out of 82 variables were initially zero. Simplification set additionally 34 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0b488c3-3b25-43d1-b47b-6584dc6e3378/bin/uautomizer/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:30:30,538 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:30:30,540 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:30:30,540 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:30:30,540 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_diff_~j~0, ULTIMATE.start_diff_~l2~0) = -1*ULTIMATE.start_diff_~j~0 + 1*ULTIMATE.start_diff_~l2~0 Supporting invariants [] [2019-12-07 15:30:30,654 INFO L297 tatePredicateManager]: 32 out of 32 supporting invariants were superfluous and have been removed [2019-12-07 15:30:30,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:30,679 INFO L264 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:30,680 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:30,684 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:30,684 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:30,688 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 [2019-12-07 15:30:30,688 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 105 transitions. cyclomatic complexity: 37 Second operand 3 states. [2019-12-07 15:30:30,702 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 105 transitions. cyclomatic complexity: 37. Second operand 3 states. Result 89 states and 116 transitions. Complement of second has 7 states. [2019-12-07 15:30:30,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:30:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-12-07 15:30:30,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 33 letters. Loop has 2 letters. [2019-12-07 15:30:30,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:30,703 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:30:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:30,726 INFO L264 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:30,726 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:30,731 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:30,731 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:30,736 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 15:30:30,736 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 105 transitions. cyclomatic complexity: 37 Second operand 3 states. [2019-12-07 15:30:30,748 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 105 transitions. cyclomatic complexity: 37. Second operand 3 states. Result 89 states and 116 transitions. Complement of second has 7 states. [2019-12-07 15:30:30,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:30:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-12-07 15:30:30,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 33 letters. Loop has 2 letters. [2019-12-07 15:30:30,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:30,749 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 15:30:30,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:30:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:30,776 INFO L264 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:30:30,777 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:30:30,781 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:30:30,782 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:30:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:30:30,786 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 15:30:30,786 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 105 transitions. cyclomatic complexity: 37 Second operand 3 states. [2019-12-07 15:30:30,800 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 105 transitions. cyclomatic complexity: 37. Second operand 3 states. Result 125 states and 171 transitions. Complement of second has 6 states. [2019-12-07 15:30:30,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:30:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:30:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2019-12-07 15:30:30,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 33 letters. Loop has 2 letters. [2019-12-07 15:30:30,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:30,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 35 letters. Loop has 2 letters. [2019-12-07 15:30:30,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:30,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 33 letters. Loop has 4 letters. [2019-12-07 15:30:30,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:30:30,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 171 transitions. [2019-12-07 15:30:30,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:30:30,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2019-12-07 15:30:30,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 15:30:30,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 15:30:30,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 15:30:30,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:30:30,803 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:30:30,803 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:30:30,803 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:30:30,803 INFO L424 BuchiCegarLoop]: ======== Iteration 20============ [2019-12-07 15:30:30,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:30:30,803 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:30:30,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 15:30:30,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:30:30 BoogieIcfgContainer [2019-12-07 15:30:30,807 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:30:30,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:30:30,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:30:30,808 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:30:30,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:29:59" (3/4) ... [2019-12-07 15:30:30,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:30:30,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:30:30,811 INFO L168 Benchmark]: Toolchain (without parser) took 31850.96 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 538.4 MB). Free memory was 939.4 MB in the beginning and 1.3 GB in the end (delta: -316.4 MB). Peak memory consumption was 222.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:30:30,812 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:30:30,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:30:30,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:30:30,812 INFO L168 Benchmark]: Boogie Preprocessor took 19.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:30:30,812 INFO L168 Benchmark]: RCFGBuilder took 228.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:30:30,813 INFO L168 Benchmark]: BuchiAutomizer took 31269.58 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 443.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -205.5 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:30:30,813 INFO L168 Benchmark]: Witness Printer took 2.88 ms. Allocated memory is still 1.6 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:30:30,814 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 228.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31269.58 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 443.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -205.5 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.88 ms. Allocated memory is still 1.6 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 19 terminating modules (10 trivial, 6 deterministic, 3 nondeterministic). One deterministic module has affine ranking function -1 * i + Alen and consists of 5 locations. One deterministic module has affine ranking function -1 * i + Blen and consists of 4 locations. One deterministic module has affine ranking function -8 * i + unknown-#length-unknown[A] and consists of 10 locations. One deterministic module has affine ranking function -1 * j + l2 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + l1 and consists of 4 locations. One deterministic module has affine ranking function 3 * l1 + -2 * k and consists of 6 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[A] + -2 * j and consists of 19 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[B] + -4 * j and consists of 8 locations. One nondeterministic module has affine ranking function -1 * j + l2 and consists of 4 locations. 10 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.2s and 20 iterations. TraceHistogramMax:3. Analysis of lassos took 22.6s. Construction of modules took 0.9s. Büchi inclusion checks took 7.4s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 12. Automata minimization 0.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 185 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 10. Nontrivial modules had stage [6, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 442 SDtfs, 1015 SDslu, 813 SDs, 0 SdLazy, 932 SolverSat, 209 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU6 SILI1 SILT0 lasso9 LassoPreprocessingBenchmarks: Lassos: inital337 mio100 ax105 hnf99 lsp87 ukn83 mio100 lsp61 div100 bol100 ite100 ukn100 eq177 hnf91 smp92 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 6 VariablesLoop: 10 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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...