./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/avg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/avg.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 704389633f786b8f459e07240134137dbbeaeb7e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 08:24:27,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:24:27,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:24:27,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:24:27,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:24:27,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:24:27,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:24:27,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:24:27,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:24:27,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:24:27,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:24:27,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:24:27,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:24:27,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:24:27,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:24:27,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:24:27,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:24:27,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:24:27,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:24:27,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:24:27,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:24:27,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:24:27,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:24:27,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:24:27,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:24:27,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:24:27,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:24:27,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:24:27,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:24:27,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:24:27,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:24:27,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:24:27,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:24:27,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:24:27,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:24:27,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:24:27,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:24:27,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:24:27,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:24:27,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:24:27,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:24:27,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 08:24:27,534 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:24:27,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:24:27,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:24:27,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:24:27,536 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 08:24:27,536 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 08:24:27,536 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 08:24:27,536 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 08:24:27,536 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 08:24:27,537 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 08:24:27,537 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 08:24:27,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:24:27,537 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:24:27,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 08:24:27,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:24:27,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:24:27,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:24:27,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 08:24:27,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 08:24:27,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 08:24:27,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:24:27,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:24:27,550 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 08:24:27,550 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:24:27,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 08:24:27,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:24:27,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 08:24:27,551 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 08:24:27,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:24:27,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 08:24:27,552 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 08:24:27,552 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 08:24:27,553 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_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 -> 704389633f786b8f459e07240134137dbbeaeb7e [2019-11-20 08:24:27,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:24:27,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:24:27,697 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:24:27,698 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:24:27,698 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:24:27,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/../../sv-benchmarks/c/reducercommutativity/avg.i [2019-11-20 08:24:27,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/data/84bffb650/2717fb93db9541cb9fe3a6839b605848/FLAG64847e8c7 [2019-11-20 08:24:28,150 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:24:28,150 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/sv-benchmarks/c/reducercommutativity/avg.i [2019-11-20 08:24:28,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/data/84bffb650/2717fb93db9541cb9fe3a6839b605848/FLAG64847e8c7 [2019-11-20 08:24:28,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/data/84bffb650/2717fb93db9541cb9fe3a6839b605848 [2019-11-20 08:24:28,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:24:28,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:24:28,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:24:28,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:24:28,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:24:28,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b206446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28, skipping insertion in model container [2019-11-20 08:24:28,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,194 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:24:28,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:24:28,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:24:28,445 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:24:28,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:24:28,487 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:24:28,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28 WrapperNode [2019-11-20 08:24:28,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:24:28,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:24:28,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:24:28,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:24:28,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:24:28,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:24:28,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:24:28,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:24:28,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... [2019-11-20 08:24:28,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:24:28,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:24:28,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:24:28,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:24:28,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 08:24:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:24:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:24:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 08:24:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 08:24:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:24:28,897 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:24:28,897 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 08:24:28,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:24:28 BoogieIcfgContainer [2019-11-20 08:24:28,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:24:28,899 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 08:24:28,899 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 08:24:28,902 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 08:24:28,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 08:24:28,903 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 08:24:28" (1/3) ... [2019-11-20 08:24:28,904 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60ad3df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 08:24:28, skipping insertion in model container [2019-11-20 08:24:28,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 08:24:28,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:24:28" (2/3) ... [2019-11-20 08:24:28,905 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60ad3df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 08:24:28, skipping insertion in model container [2019-11-20 08:24:28,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 08:24:28,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:24:28" (3/3) ... [2019-11-20 08:24:28,906 INFO L371 chiAutomizerObserver]: Analyzing ICFG avg.i [2019-11-20 08:24:28,958 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 08:24:28,959 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 08:24:28,959 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 08:24:28,959 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 08:24:28,959 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 08:24:28,959 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 08:24:28,959 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 08:24:28,959 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 08:24:28,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-11-20 08:24:28,988 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-20 08:24:28,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:28,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:28,993 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 08:24:28,993 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:28,994 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 08:24:28,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-11-20 08:24:28,996 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-20 08:24:28,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:28,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:28,996 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 08:24:28,997 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:29,002 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 13#L20true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 9#L11-3true [2019-11-20 08:24:29,002 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-3true assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 12#L11-2true avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 9#L11-3true [2019-11-20 08:24:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:29,006 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-11-20 08:24:29,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:29,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611541553] [2019-11-20 08:24:29,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:29,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:29,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:29,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1379, now seen corresponding path program 1 times [2019-11-20 08:24:29,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:29,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891772093] [2019-11-20 08:24:29,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:29,136 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:29,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:29,138 INFO L82 PathProgramCache]: Analyzing trace with hash 28693956, now seen corresponding path program 1 times [2019-11-20 08:24:29,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:29,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378574844] [2019-11-20 08:24:29,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:29,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:29,403 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-11-20 08:24:29,465 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:24:29,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:24:29,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:24:29,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:24:29,466 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:24:29,467 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:29,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:24:29,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:24:29,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg.i_Iteration1_Lasso [2019-11-20 08:24:29,468 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:24:29,468 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:24:29,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:29,988 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:24:29,996 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,011 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 [2019-11-20 08:24:30,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,043 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 [2019-11-20 08:24:30,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,050 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,066 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 [2019-11-20 08:24:30,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,075 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,090 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 [2019-11-20 08:24:30,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,113 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 [2019-11-20 08:24:30,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,118 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,133 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 [2019-11-20 08:24:30,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:30,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,163 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 [2019-11-20 08:24:30,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:30,183 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 [2019-11-20 08:24:30,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:30,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,204 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 [2019-11-20 08:24:30,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:30,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 [2019-11-20 08:24:30,226 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 [2019-11-20 08:24:30,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:30,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:30,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:30,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:30,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:30,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:30,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:30,270 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 [2019-11-20 08:24:30,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:30,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:30,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:30,289 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 [2019-11-20 08:24:30,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:30,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:30,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:30,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:30,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:30,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:30,334 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:24:30,480 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-11-20 08:24:30,481 INFO L444 ModelExtractionUtils]: 12 out of 25 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:30,494 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 08:24:30,497 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 08:24:30,498 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:24:30,498 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~x.offset, ULTIMATE.start_avg_~i~0, v_rep(select #length ULTIMATE.start_avg_~x.base)_1) = -1*ULTIMATE.start_avg_~x.offset - 4*ULTIMATE.start_avg_~i~0 + 1*v_rep(select #length ULTIMATE.start_avg_~x.base)_1 Supporting invariants [] [2019-11-20 08:24:30,511 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 08:24:30,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:24:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:30,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 08:24:30,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:30,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 08:24:30,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:30,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:30,611 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 [2019-11-20 08:24:30,612 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 3 states. [2019-11-20 08:24:30,670 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 3 states. Result 51 states and 69 transitions. Complement of second has 8 states. [2019-11-20 08:24:30,670 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 [2019-11-20 08:24:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 08:24:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2019-11-20 08:24:30,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 08:24:30,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:30,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 08:24:30,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:30,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-20 08:24:30,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:30,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 69 transitions. [2019-11-20 08:24:30,680 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:30,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 17 states and 23 transitions. [2019-11-20 08:24:30,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 08:24:30,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 08:24:30,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-11-20 08:24:30,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:30,686 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-20 08:24:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-11-20 08:24:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 08:24:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 08:24:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2019-11-20 08:24:30,714 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-20 08:24:30,714 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-20 08:24:30,715 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 08:24:30,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2019-11-20 08:24:30,725 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:30,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:30,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:30,726 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 08:24:30,727 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:30,727 INFO L794 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 141#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 140#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 136#L11-3 assume !(avg_~i~0 < ~N~0); 132#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 133#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 145#L11-8 [2019-11-20 08:24:30,727 INFO L796 eck$LassoCheckResult]: Loop: 145#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 146#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 145#L11-8 [2019-11-20 08:24:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:30,728 INFO L82 PathProgramCache]: Analyzing trace with hash 889510859, now seen corresponding path program 1 times [2019-11-20 08:24:30,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:30,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837408711] [2019-11-20 08:24:30,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:30,739 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:30,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568016789] [2019-11-20 08:24:30,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:30,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 08:24:30,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:30,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837408711] [2019-11-20 08:24:30,811 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 08:24:30,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568016789] [2019-11-20 08:24:30,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:24:30,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 08:24:30,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608413375] [2019-11-20 08:24:30,815 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:24:30,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:30,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2019-11-20 08:24:30,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:30,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100327070] [2019-11-20 08:24:30,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:30,837 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:30,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:24:30,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 08:24:30,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 08:24:30,871 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-20 08:24:30,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:24:30,941 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2019-11-20 08:24:30,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 08:24:30,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2019-11-20 08:24:30,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:30,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2019-11-20 08:24:30,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 08:24:30,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 08:24:30,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2019-11-20 08:24:30,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:30,944 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-20 08:24:30,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2019-11-20 08:24:30,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-20 08:24:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 08:24:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-20 08:24:30,947 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 08:24:30,947 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-20 08:24:30,947 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 08:24:30,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2019-11-20 08:24:30,948 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:30,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:30,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:30,949 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:24:30,949 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:30,949 INFO L794 eck$LassoCheckResult]: Stem: 198#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 197#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 196#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 192#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 193#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 194#L11-3 assume !(avg_~i~0 < ~N~0); 188#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 189#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 201#L11-8 [2019-11-20 08:24:30,950 INFO L796 eck$LassoCheckResult]: Loop: 201#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 202#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 201#L11-8 [2019-11-20 08:24:30,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:30,950 INFO L82 PathProgramCache]: Analyzing trace with hash 123162473, now seen corresponding path program 1 times [2019-11-20 08:24:30,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:30,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480980593] [2019-11-20 08:24:30,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:30,960 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:30,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346982088] [2019-11-20 08:24:30,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:31,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 08:24:31,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:31,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480980593] [2019-11-20 08:24:31,047 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 08:24:31,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346982088] [2019-11-20 08:24:31,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-20 08:24:31,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-11-20 08:24:31,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837834986] [2019-11-20 08:24:31,048 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:24:31,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:31,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 2 times [2019-11-20 08:24:31,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:31,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13817203] [2019-11-20 08:24:31,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:31,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:24:31,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 08:24:31,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 08:24:31,093 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-20 08:24:31,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:24:31,188 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-11-20 08:24:31,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 08:24:31,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2019-11-20 08:24:31,190 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:31,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2019-11-20 08:24:31,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 08:24:31,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 08:24:31,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2019-11-20 08:24:31,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:31,191 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-20 08:24:31,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2019-11-20 08:24:31,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-20 08:24:31,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 08:24:31,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-20 08:24:31,193 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-20 08:24:31,193 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-20 08:24:31,194 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 08:24:31,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2019-11-20 08:24:31,194 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:31,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:31,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:31,195 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-20 08:24:31,195 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:31,195 INFO L794 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 263#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 262#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 257#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 258#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 259#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 260#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 269#L11-3 assume !(avg_~i~0 < ~N~0); 253#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 254#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 267#L11-8 [2019-11-20 08:24:31,196 INFO L796 eck$LassoCheckResult]: Loop: 267#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 268#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 267#L11-8 [2019-11-20 08:24:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:31,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1898228857, now seen corresponding path program 2 times [2019-11-20 08:24:31,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:31,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776210837] [2019-11-20 08:24:31,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:31,217 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:31,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626113005] [2019-11-20 08:24:31,218 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:31,264 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 08:24:31,264 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-11-20 08:24:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 3 times [2019-11-20 08:24:31,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:31,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624741576] [2019-11-20 08:24:31,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,301 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:31,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1163170153, now seen corresponding path program 1 times [2019-11-20 08:24:31,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:31,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059978740] [2019-11-20 08:24:31,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:31,310 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:31,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2411398] [2019-11-20 08:24:31,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:31,415 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:32,210 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 119 [2019-11-20 08:24:34,498 WARN L191 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2019-11-20 08:24:34,504 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:24:34,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:24:34,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:24:34,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:24:34,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:24:34,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:34,504 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:24:34,504 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:24:34,504 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg.i_Iteration4_Lasso [2019-11-20 08:24:34,504 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:24:34,505 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:24:34,506 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:24:34,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:34,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 29 [2019-11-20 08:24:36,994 WARN L191 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-11-20 08:24:37,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:37,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:24:38,750 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 176 DAG size of output: 108 [2019-11-20 08:24:38,787 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-11-20 08:24:40,971 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 127 DAG size of output: 97 [2019-11-20 08:24:41,012 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:24:41,012 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,019 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 [2019-11-20 08:24:41,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,030 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 [2019-11-20 08:24:41,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,054 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 [2019-11-20 08:24:41,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,078 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 [2019-11-20 08:24:41,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,091 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 [2019-11-20 08:24:41,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:41,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:41,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,110 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 [2019-11-20 08:24:41,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,119 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 [2019-11-20 08:24:41,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:24:41,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,143 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 [2019-11-20 08:24:41,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:41,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,159 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 [2019-11-20 08:24:41,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,170 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 [2019-11-20 08:24:41,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,180 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 [2019-11-20 08:24:41,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:24:41,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,199 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 [2019-11-20 08:24:41,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,209 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 [2019-11-20 08:24:41,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,219 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 [2019-11-20 08:24:41,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:41,227 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 [2019-11-20 08:24:41,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:41,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:41,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:41,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:41,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:41,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,238 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 [2019-11-20 08:24:41,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:41,241 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-11-20 08:24:41,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:41,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,278 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 08:24:41,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:41,325 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:24:41,414 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2019-11-20 08:24:41,414 INFO L444 ModelExtractionUtils]: 15 out of 43 variables were initially zero. Simplification set additionally 23 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:41,420 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:41,423 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 08:24:41,424 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:24:41,424 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_avg_~x.base)_2, ULTIMATE.start_avg_~i~0) = 1*v_rep(select #length ULTIMATE.start_avg_~x.base)_2 - 2*ULTIMATE.start_avg_~i~0 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_2 - 2*~N~0 >= 0] [2019-11-20 08:24:41,442 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 08:24:41,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:24:41,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:41,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 08:24:41,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:41,556 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:24:41,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:41,575 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2019-11-20 08:24:41,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 7 Second operand 7 states. [2019-11-20 08:24:41,732 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 7. Second operand 7 states. Result 41 states and 52 transitions. Complement of second has 12 states. [2019-11-20 08:24:41,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 5 stem states 2 non-accepting loop states 2 accepting loop states [2019-11-20 08:24:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 08:24:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 25 transitions. [2019-11-20 08:24:41,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 25 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-20 08:24:41,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:41,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 25 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-20 08:24:41,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:41,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 25 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-20 08:24:41,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:41,734 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2019-11-20 08:24:41,735 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-20 08:24:41,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 35 states and 43 transitions. [2019-11-20 08:24:41,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-20 08:24:41,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-11-20 08:24:41,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 43 transitions. [2019-11-20 08:24:41,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:41,736 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 43 transitions. [2019-11-20 08:24:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 43 transitions. [2019-11-20 08:24:41,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2019-11-20 08:24:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 08:24:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-11-20 08:24:41,738 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-20 08:24:41,738 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-20 08:24:41,738 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 08:24:41,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2019-11-20 08:24:41,739 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:41,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:41,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:41,740 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1] [2019-11-20 08:24:41,740 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:41,740 INFO L794 eck$LassoCheckResult]: Stem: 427#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 426#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 425#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 420#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 421#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 439#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 438#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 437#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 423#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 422#L11-3 assume !(avg_~i~0 < ~N~0); 416#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 417#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 430#L11-8 [2019-11-20 08:24:41,740 INFO L796 eck$LassoCheckResult]: Loop: 430#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 431#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 430#L11-8 [2019-11-20 08:24:41,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:41,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1164888101, now seen corresponding path program 3 times [2019-11-20 08:24:41,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:41,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452619199] [2019-11-20 08:24:41,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:41,750 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:41,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925577163] [2019-11-20 08:24:41,750 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:41,799 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-20 08:24:41,799 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-11-20 08:24:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:41,816 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:41,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 4 times [2019-11-20 08:24:41,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:41,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259705142] [2019-11-20 08:24:41,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:41,824 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:41,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1528998265, now seen corresponding path program 2 times [2019-11-20 08:24:41,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:41,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379719606] [2019-11-20 08:24:41,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:41,832 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:41,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171743064] [2019-11-20 08:24:41,832 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:42,546 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 08:24:42,546 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-11-20 08:24:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:42,569 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:43,203 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 126 [2019-11-20 08:24:46,327 WARN L191 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-11-20 08:24:46,329 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:24:46,329 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:24:46,329 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:24:46,329 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:24:46,329 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:24:46,329 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:46,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:24:46,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:24:46,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg.i_Iteration5_Lasso [2019-11-20 08:24:46,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:24:46,330 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:24:46,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:24:46,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:46,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:46,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:46,422 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 29 [2019-11-20 08:24:47,578 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-11-20 08:24:47,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:24:47,632 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:24:48,348 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 101 [2019-11-20 08:24:48,385 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:24:50,358 WARN L191 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2019-11-20 08:24:50,394 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:24:50,395 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:50,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:50,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:50,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:50,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:50,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:50,418 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 [2019-11-20 08:24:50,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:50,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:50,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:50,421 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:50,425 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 [2019-11-20 08:24:50,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:50,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:50,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:50,437 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 [2019-11-20 08:24:50,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:50,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:50,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:50,467 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 [2019-11-20 08:24:50,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:50,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:50,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:24:50,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:24:50,475 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 [2019-11-20 08:24:50,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:24:50,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:24:50,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:24:50,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:50,486 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 [2019-11-20 08:24:50,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:24:50,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:24:50,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:50,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:50,496 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 [2019-11-20 08:24:50,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:24:50,498 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-11-20 08:24:50,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:24:50,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:24:50,531 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 08:24:50,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:24:50,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:24:50,662 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-20 08:24:50,663 INFO L444 ModelExtractionUtils]: 8 out of 43 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:24:50,666 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 08:24:50,668 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 08:24:50,668 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:24:50,668 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_avg_~x.base)_3, ULTIMATE.start_avg_~i~0) = 5*v_rep(select #length ULTIMATE.start_avg_~x.base)_3 - 8*ULTIMATE.start_avg_~i~0 Supporting invariants [-1*~N~0 + 3 >= 0] [2019-11-20 08:24:50,693 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2019-11-20 08:24:50,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:24:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:50,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:24:50,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:50,793 WARN L253 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:24:50,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:50,812 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2019-11-20 08:24:50,812 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 11 Second operand 8 states. [2019-11-20 08:24:50,987 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 49 states and 66 transitions. Complement of second has 15 states. [2019-11-20 08:24:50,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 8 stem states 2 non-accepting loop states 2 accepting loop states [2019-11-20 08:24:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-20 08:24:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 30 transitions. [2019-11-20 08:24:50,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 30 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-20 08:24:50,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:50,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-20 08:24:50,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:50,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 30 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-20 08:24:50,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:24:50,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 66 transitions. [2019-11-20 08:24:50,992 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2019-11-20 08:24:50,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 42 states and 53 transitions. [2019-11-20 08:24:50,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-20 08:24:50,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-11-20 08:24:50,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 53 transitions. [2019-11-20 08:24:50,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:50,995 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 53 transitions. [2019-11-20 08:24:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 53 transitions. [2019-11-20 08:24:50,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-20 08:24:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 08:24:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-11-20 08:24:51,002 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-20 08:24:51,002 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-20 08:24:51,002 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 08:24:51,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2019-11-20 08:24:51,004 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:51,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:51,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:51,005 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:24:51,005 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:51,012 INFO L794 eck$LassoCheckResult]: Stem: 626#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 625#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 624#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 619#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 620#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 621#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 622#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 640#L11-3 assume !(avg_~i~0 < ~N~0); 615#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 616#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 629#L11-8 assume !(avg_~i~0 < ~N~0); 627#L11-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 628#L14-1 main_#t~ret6 := avg_#res;main_~ret2~0 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;main_~i~1 := 0; 617#L32-3 [2019-11-20 08:24:51,012 INFO L796 eck$LassoCheckResult]: Loop: 617#L32-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem9; 618#L32-2 main_#t~post8 := main_~i~1;main_~i~1 := 1 + main_#t~post8;havoc main_#t~post8; 617#L32-3 [2019-11-20 08:24:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1698534614, now seen corresponding path program 1 times [2019-11-20 08:24:51,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027008364] [2019-11-20 08:24:51,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,019 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:51,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893839356] [2019-11-20 08:24:51,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:51,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 08:24:51,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 08:24:51,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027008364] [2019-11-20 08:24:51,066 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 08:24:51,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893839356] [2019-11-20 08:24:51,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:24:51,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 08:24:51,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999339236] [2019-11-20 08:24:51,066 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:24:51,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,066 INFO L82 PathProgramCache]: Analyzing trace with hash 2403, now seen corresponding path program 1 times [2019-11-20 08:24:51,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32053267] [2019-11-20 08:24:51,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:51,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:24:51,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 08:24:51,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 08:24:51,119 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-20 08:24:51,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:24:51,151 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-20 08:24:51,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 08:24:51,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2019-11-20 08:24:51,152 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:51,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 39 transitions. [2019-11-20 08:24:51,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-11-20 08:24:51,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-20 08:24:51,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 39 transitions. [2019-11-20 08:24:51,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:51,153 INFO L688 BuchiCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-11-20 08:24:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 39 transitions. [2019-11-20 08:24:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2019-11-20 08:24:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 08:24:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2019-11-20 08:24:51,156 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-11-20 08:24:51,156 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-11-20 08:24:51,156 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 08:24:51,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2019-11-20 08:24:51,156 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:51,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:51,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:51,157 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:24:51,157 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:51,157 INFO L794 eck$LassoCheckResult]: Stem: 731#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 730#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 729#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 723#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 724#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 725#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 726#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 728#L11-3 assume !(avg_~i~0 < ~N~0); 719#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 720#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 740#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 737#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 736#L11-8 assume !(avg_~i~0 < ~N~0); 732#L11-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 733#L14-1 main_#t~ret6 := avg_#res;main_~ret2~0 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;main_~i~1 := 0; 721#L32-3 [2019-11-20 08:24:51,157 INFO L796 eck$LassoCheckResult]: Loop: 721#L32-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem9; 722#L32-2 main_#t~post8 := main_~i~1;main_~i~1 := 1 + main_#t~post8;havoc main_#t~post8; 721#L32-3 [2019-11-20 08:24:51,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,158 INFO L82 PathProgramCache]: Analyzing trace with hash 205910964, now seen corresponding path program 1 times [2019-11-20 08:24:51,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652601218] [2019-11-20 08:24:51,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,164 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:51,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112166441] [2019-11-20 08:24:51,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:51,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 08:24:51,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:24:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 08:24:51,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652601218] [2019-11-20 08:24:51,221 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 08:24:51,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112166441] [2019-11-20 08:24:51,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-20 08:24:51,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-11-20 08:24:51,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027123405] [2019-11-20 08:24:51,222 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:24:51,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2403, now seen corresponding path program 2 times [2019-11-20 08:24:51,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067621639] [2019-11-20 08:24:51,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,228 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:51,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:24:51,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 08:24:51,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 08:24:51,271 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-20 08:24:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:24:51,323 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2019-11-20 08:24:51,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 08:24:51,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 45 transitions. [2019-11-20 08:24:51,327 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:51,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 45 transitions. [2019-11-20 08:24:51,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-20 08:24:51,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-11-20 08:24:51,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 45 transitions. [2019-11-20 08:24:51,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:24:51,328 INFO L688 BuchiCegarLoop]: Abstraction has 39 states and 45 transitions. [2019-11-20 08:24:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 45 transitions. [2019-11-20 08:24:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2019-11-20 08:24:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 08:24:51,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2019-11-20 08:24:51,331 INFO L711 BuchiCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-11-20 08:24:51,331 INFO L591 BuchiCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-11-20 08:24:51,331 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 08:24:51,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 39 transitions. [2019-11-20 08:24:51,331 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2019-11-20 08:24:51,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:24:51,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:24:51,332 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:24:51,332 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:24:51,332 INFO L794 eck$LassoCheckResult]: Stem: 848#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 847#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 846#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 841#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 842#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 843#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 844#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 865#L11-3 assume !(avg_~i~0 < ~N~0); 862#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 861#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 860#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 859#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 853#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 854#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 856#L11-8 assume !(avg_~i~0 < ~N~0); 849#L11-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 850#L14-1 main_#t~ret6 := avg_#res;main_~ret2~0 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;main_~i~1 := 0; 839#L32-3 [2019-11-20 08:24:51,332 INFO L796 eck$LassoCheckResult]: Loop: 839#L32-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem9; 840#L32-2 main_#t~post8 := main_~i~1;main_~i~1 := 1 + main_#t~post8;havoc main_#t~post8; 839#L32-3 [2019-11-20 08:24:51,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,333 INFO L82 PathProgramCache]: Analyzing trace with hash 313660178, now seen corresponding path program 2 times [2019-11-20 08:24:51,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032308869] [2019-11-20 08:24:51,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,351 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:51,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37888679] [2019-11-20 08:24:51,354 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:51,405 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 08:24:51,405 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-11-20 08:24:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,428 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:51,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,430 INFO L82 PathProgramCache]: Analyzing trace with hash 2403, now seen corresponding path program 3 times [2019-11-20 08:24:51,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068514431] [2019-11-20 08:24:51,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:51,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:24:51,436 INFO L82 PathProgramCache]: Analyzing trace with hash 779721780, now seen corresponding path program 1 times [2019-11-20 08:24:51,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:24:51,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729648869] [2019-11-20 08:24:51,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:24:51,443 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:24:51,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375454960] [2019-11-20 08:24:51,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Exception during sending of exit command (exit): Broken pipe Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:24:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:24:51,545 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:24:53,612 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 200 DAG size of output: 162 [2019-11-20 08:25:10,533 WARN L191 SmtUtils]: Spent 16.40 s on a formula simplification. DAG size of input: 252 DAG size of output: 116 [2019-11-20 08:25:10,535 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:25:10,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:25:10,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:25:10,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:25:10,536 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:25:10,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:25:10,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:25:10,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:25:10,536 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg.i_Iteration8_Lasso [2019-11-20 08:25:10,536 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:25:10,536 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:25:10,537 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:25:10,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:10,751 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 110 [2019-11-20 08:25:18,219 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 7058 conjuctions. This might take some time... [2019-11-20 08:25:18,272 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 6 conjuctions. [2019-11-20 08:25:20,178 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2019-11-20 08:25:20,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:20,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:20,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:20,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:25:20,256 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:25:34,734 WARN L191 SmtUtils]: Spent 14.32 s on a formula simplification. DAG size of input: 299 DAG size of output: 165 [2019-11-20 08:25:34,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-20 08:25:41,781 WARN L191 SmtUtils]: Spent 6.91 s on a formula simplification. DAG size of input: 236 DAG size of output: 149 [2019-11-20 08:25:41,835 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:25:41,835 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,839 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 [2019-11-20 08:25:41,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,845 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 [2019-11-20 08:25:41,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:25:41,853 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 [2019-11-20 08:25:41,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,857 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:25:41,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:25:41,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,869 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 [2019-11-20 08:25:41,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,872 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,876 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 [2019-11-20 08:25:41,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,884 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 [2019-11-20 08:25:41,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:25:41,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:25:41,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,894 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 [2019-11-20 08:25:41,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,901 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 [2019-11-20 08:25:41,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,908 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 [2019-11-20 08:25:41,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:25:41,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:25:41,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,917 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,921 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 [2019-11-20 08:25:41,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:25:41,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:25:41,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:25:41,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:25:41,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:25:41,927 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 [2019-11-20 08:25:41,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:25:41,930 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-11-20 08:25:41,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:25:41,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:25:41,976 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 08:25:41,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:25:42,075 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:25:42,229 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2019-11-20 08:25:42,229 INFO L444 ModelExtractionUtils]: 22 out of 61 variables were initially zero. Simplification set additionally 36 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:25:42,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:25:42,236 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 08:25:42,236 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:25:42,236 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ~N~0) = -1*ULTIMATE.start_main_~i~1 + 1*~N~0 Supporting invariants [] [2019-11-20 08:25:42,283 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2019-11-20 08:25:42,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:25:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:42,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 08:25:42,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:25:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:42,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 08:25:42,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:25:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:42,341 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 [2019-11-20 08:25:42,341 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 39 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-20 08:25:42,366 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 39 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 38 states and 48 transitions. Complement of second has 6 states. [2019-11-20 08:25:42,367 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 [2019-11-20 08:25:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 08:25:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-20 08:25:42,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 2 letters. [2019-11-20 08:25:42,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:25:42,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 19 letters. Loop has 2 letters. [2019-11-20 08:25:42,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:25:42,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 4 letters. [2019-11-20 08:25:42,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:25:42,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2019-11-20 08:25:42,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-20 08:25:42,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 34 states and 41 transitions. [2019-11-20 08:25:42,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2019-11-20 08:25:42,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-20 08:25:42,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2019-11-20 08:25:42,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:25:42,370 INFO L688 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2019-11-20 08:25:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2019-11-20 08:25:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 08:25:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 08:25:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2019-11-20 08:25:42,373 INFO L711 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2019-11-20 08:25:42,373 INFO L591 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2019-11-20 08:25:42,373 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-20 08:25:42,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 41 transitions. [2019-11-20 08:25:42,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-20 08:25:42,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:25:42,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:25:42,378 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:25:42,378 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:25:42,379 INFO L794 eck$LassoCheckResult]: Stem: 1037#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 1036#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 1035#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1029#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1030#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1031#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1032#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1034#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1052#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1055#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1054#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1053#L11-3 assume !(avg_~i~0 < ~N~0); 1024#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 1025#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1040#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1041#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1044#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1048#L11-7 [2019-11-20 08:25:42,379 INFO L796 eck$LassoCheckResult]: Loop: 1048#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1047#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1048#L11-7 [2019-11-20 08:25:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:25:42,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1675638936, now seen corresponding path program 3 times [2019-11-20 08:25:42,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:25:42,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605603362] [2019-11-20 08:25:42,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:25:42,397 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:25:42,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704071333] [2019-11-20 08:25:42,398 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:25:42,463 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-20 08:25:42,464 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-11-20 08:25:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:25:42,488 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:25:42,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:25:42,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 5 times [2019-11-20 08:25:42,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:25:42,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643463735] [2019-11-20 08:25:42,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:25:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:25:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:25:42,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:25:42,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:25:42,503 INFO L82 PathProgramCache]: Analyzing trace with hash -323717514, now seen corresponding path program 4 times [2019-11-20 08:25:42,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:25:42,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645231947] [2019-11-20 08:25:42,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:25:42,510 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:25:42,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691778629] [2019-11-20 08:25:42,522 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:25:42,579 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 08:25:42,579 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-11-20 08:25:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:25:42,605 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:25:43,355 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 153 [2019-11-20 08:26:01,420 WARN L191 SmtUtils]: Spent 17.92 s on a formula simplification. DAG size of input: 144 DAG size of output: 101 [2019-11-20 08:26:01,423 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:26:01,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:26:01,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:26:01,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:26:01,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:26:01,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:01,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:26:01,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:26:01,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg.i_Iteration9_Lasso [2019-11-20 08:26:01,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:26:01,424 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:26:01,425 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:26:01,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:01,547 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 29 [2019-11-20 08:26:02,857 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2019-11-20 08:26:02,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:02,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:02,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:02,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:02,888 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:26:04,134 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 137 DAG size of output: 95 [2019-11-20 08:26:04,174 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-11-20 08:26:05,939 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2019-11-20 08:26:05,982 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:26:05,982 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:05,990 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 [2019-11-20 08:26:05,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:05,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:05,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:05,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:05,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:05,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:05,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:05,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:05,997 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 [2019-11-20 08:26:05,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:05,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:05,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:05,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:05,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:05,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,004 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 [2019-11-20 08:26:06,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,012 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 [2019-11-20 08:26:06,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:26:06,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:26:06,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,025 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 [2019-11-20 08:26:06,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,029 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:26:06,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,040 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 [2019-11-20 08:26:06,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,046 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 [2019-11-20 08:26:06,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,052 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 [2019-11-20 08:26:06,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,058 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 [2019-11-20 08:26:06,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,065 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 [2019-11-20 08:26:06,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,068 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:06,072 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 [2019-11-20 08:26:06,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:06,078 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 [2019-11-20 08:26:06,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:26:06,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:26:06,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:26:06,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:06,085 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 [2019-11-20 08:26:06,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:26:06,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:26:06,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:06,098 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 [2019-11-20 08:26:06,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:26:06,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:26:06,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,109 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 [2019-11-20 08:26:06,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:26:06,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:26:06,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:26:06,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:26:06,118 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 [2019-11-20 08:26:06,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:26:06,120 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-11-20 08:26:06,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:26:06,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:26:06,144 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 08:26:06,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:26:06,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:26:06,246 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-20 08:26:06,246 INFO L444 ModelExtractionUtils]: 11 out of 31 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:26:06,250 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:06,253 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 08:26:06,253 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:26:06,253 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~x.offset, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_5, ULTIMATE.start_avg_~i~0) = -1*ULTIMATE.start_avg_~x.offset + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_5 - 4*ULTIMATE.start_avg_~i~0 Supporting invariants [] [2019-11-20 08:26:06,278 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2019-11-20 08:26:06,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:26:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:26:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:06,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 08:26:06,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:26:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:06,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 08:26:06,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:26:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:26:06,351 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 08:26:06,351 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-20 08:26:06,419 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 41 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 45 states and 55 transitions. Complement of second has 6 states. [2019-11-20 08:26:06,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 08:26:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 08:26:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-11-20 08:26:06,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 17 letters. Loop has 2 letters. [2019-11-20 08:26:06,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:26:06,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 19 letters. Loop has 2 letters. [2019-11-20 08:26:06,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:26:06,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 17 letters. Loop has 4 letters. [2019-11-20 08:26:06,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:26:06,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2019-11-20 08:26:06,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 08:26:06,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 36 states and 43 transitions. [2019-11-20 08:26:06,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-11-20 08:26:06,423 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-11-20 08:26:06,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 43 transitions. [2019-11-20 08:26:06,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:26:06,423 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-11-20 08:26:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 43 transitions. [2019-11-20 08:26:06,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2019-11-20 08:26:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 08:26:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2019-11-20 08:26:06,426 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-11-20 08:26:06,426 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-11-20 08:26:06,426 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-20 08:26:06,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2019-11-20 08:26:06,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 08:26:06,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:26:06,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:26:06,427 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:26:06,427 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:26:06,428 INFO L794 eck$LassoCheckResult]: Stem: 1224#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 1223#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 1222#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1217#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1218#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1219#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1220#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1239#L11-3 assume !(avg_~i~0 < ~N~0); 1212#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 1213#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1227#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1228#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1229#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1230#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1235#L11-8 assume !(avg_~i~0 < ~N~0); 1225#L11-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 1226#L14-1 main_#t~ret6 := avg_#res;main_~ret2~0 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;main_~i~1 := 0; 1214#L32-3 assume !(main_~i~1 < ~N~0 - 1); 1210#L32-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1211#L11-13 [2019-11-20 08:26:06,428 INFO L796 eck$LassoCheckResult]: Loop: 1211#L11-13 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1221#L11-12 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1211#L11-13 [2019-11-20 08:26:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:26:06,428 INFO L82 PathProgramCache]: Analyzing trace with hash 779721722, now seen corresponding path program 1 times [2019-11-20 08:26:06,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:26:06,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823633050] [2019-11-20 08:26:06,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:26:06,447 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:26:06,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412731501] [2019-11-20 08:26:06,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:26:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:06,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 08:26:06,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:26:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-20 08:26:06,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823633050] [2019-11-20 08:26:06,512 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 08:26:06,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412731501] [2019-11-20 08:26:06,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 08:26:06,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 08:26:06,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39487533] [2019-11-20 08:26:06,513 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 08:26:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:26:06,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2019-11-20 08:26:06,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:26:06,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154682439] [2019-11-20 08:26:06,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:26:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,519 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:26:06,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 08:26:06,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 08:26:06,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 08:26:06,548 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-11-20 08:26:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 08:26:06,579 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2019-11-20 08:26:06,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 08:26:06,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2019-11-20 08:26:06,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 08:26:06,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 37 transitions. [2019-11-20 08:26:06,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-20 08:26:06,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-20 08:26:06,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 37 transitions. [2019-11-20 08:26:06,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 08:26:06,582 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-11-20 08:26:06,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 37 transitions. [2019-11-20 08:26:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-11-20 08:26:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 08:26:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-11-20 08:26:06,584 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-11-20 08:26:06,584 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-11-20 08:26:06,584 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-20 08:26:06,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2019-11-20 08:26:06,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 08:26:06,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 08:26:06,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 08:26:06,585 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 08:26:06,585 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 08:26:06,586 INFO L794 eck$LassoCheckResult]: Stem: 1349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; 1348#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_#t~mem4, main_#t~mem5, main_#t~ret6, main_#t~mem7, main_#t~mem9, main_#t~post8, main_~i~1, main_#t~ret10, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet2;havoc main_#t~nondet2; 1347#L20 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1341#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1342#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1343#L11-3 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1344#L11-2 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1346#L11-3 assume !(avg_~i~0 < ~N~0); 1336#L11-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 1337#L14 main_#t~ret3 := avg_#res;main_~ret~1 := main_#t~ret3;havoc main_#t~ret3;call main_#t~mem4 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem4;havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem5, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem5;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1352#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1353#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1354#L11-8 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1355#L11-7 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1364#L11-8 assume !(avg_~i~0 < ~N~0); 1350#L11-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % ~N~0 then (if ~N~0 < 0 then avg_~ret~0 / ~N~0 - 1 else 1 + avg_~ret~0 / ~N~0) else avg_~ret~0 / ~N~0) % 4294967296 - 4294967296); 1351#L14-1 main_#t~ret6 := avg_#res;main_~ret2~0 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;main_~i~1 := 0; 1338#L32-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem9; 1339#L32-2 main_#t~post8 := main_~i~1;main_~i~1 := 1 + main_#t~post8;havoc main_#t~post8; 1340#L32-3 assume !(main_~i~1 < ~N~0 - 1); 1334#L32-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem1, avg_#t~post0, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1335#L11-13 [2019-11-20 08:26:06,586 INFO L796 eck$LassoCheckResult]: Loop: 1335#L11-13 assume !!(avg_~i~0 < ~N~0);call avg_#t~mem1 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem1;havoc avg_#t~mem1; 1345#L11-12 avg_#t~post0 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post0;havoc avg_#t~post0; 1335#L11-13 [2019-11-20 08:26:06,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:26:06,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1988322460, now seen corresponding path program 1 times [2019-11-20 08:26:06,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:26:06,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866361566] [2019-11-20 08:26:06,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:26:06,595 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:26:06,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937381913] [2019-11-20 08:26:06,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:26:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,695 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:26:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:26:06,696 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2019-11-20 08:26:06,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:26:06,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741210379] [2019-11-20 08:26:06,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:26:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,704 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:26:06,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:26:06,704 INFO L82 PathProgramCache]: Analyzing trace with hash -482560770, now seen corresponding path program 1 times [2019-11-20 08:26:06,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 08:26:06,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070815582] [2019-11-20 08:26:06,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 08:26:06,709 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 08:26:06,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605388851] [2019-11-20 08:26:06,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/bin/uautomizer/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 08:26:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:26:06,808 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 08:26:08,988 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 246 DAG size of output: 207 [2019-11-20 08:26:35,034 WARN L191 SmtUtils]: Spent 24.58 s on a formula simplification. DAG size of input: 388 DAG size of output: 130 [2019-11-20 08:26:35,037 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 08:26:35,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 08:26:35,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 08:26:35,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 08:26:35,037 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 08:26:35,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:26:35,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 08:26:35,038 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 08:26:35,038 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg.i_Iteration11_Lasso [2019-11-20 08:26:35,038 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 08:26:35,038 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 08:26:35,039 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:26:35,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:35,239 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 109 [2019-11-20 08:26:40,354 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2019-11-20 08:26:40,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:40,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:40,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 08:26:40,396 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 08:27:04,491 WARN L191 SmtUtils]: Spent 24.02 s on a formula simplification. DAG size of input: 244 DAG size of output: 126 [2019-11-20 08:27:04,528 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2019-11-20 08:27:18,365 WARN L191 SmtUtils]: Spent 13.72 s on a formula simplification. DAG size of input: 268 DAG size of output: 110 [2019-11-20 08:27:18,404 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 08:27:18,404 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:27:18,418 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 [2019-11-20 08:27:18,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:27:18,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,428 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 [2019-11-20 08:27:18,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,430 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:27:18,430 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:27:18,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:27:18,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,442 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 [2019-11-20 08:27:18,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,445 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,450 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 [2019-11-20 08:27:18,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,457 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 [2019-11-20 08:27:18,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,463 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 [2019-11-20 08:27:18,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:27:18,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:27:18,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,472 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 [2019-11-20 08:27:18,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,478 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 [2019-11-20 08:27:18,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,488 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 [2019-11-20 08:27:18,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 08:27:18,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,508 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 [2019-11-20 08:27:18,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,516 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 [2019-11-20 08:27:18,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 08:27:18,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 08:27:18,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 08:27:18,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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 [2019-11-20 08:27:18,522 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 [2019-11-20 08:27:18,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 08:27:18,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 08:27:18,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 08:27:18,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:27:18,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:27:18,541 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 [2019-11-20 08:27:18,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 08:27:18,543 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-11-20 08:27:18,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 08:27:18,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:27:18,567 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 08:27:18,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 08:27:18,606 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 08:27:18,685 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2019-11-20 08:27:18,685 INFO L444 ModelExtractionUtils]: 18 out of 37 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d96accfd-3cd8-4b40-ae57-cfb44197731e/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) [2019-11-20 08:27:18,690 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 08:27:18,692 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 08:27:18,693 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 08:27:18,693 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~i~0, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_6) = -4*ULTIMATE.start_avg_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_6 Supporting invariants [1*ULTIMATE.start_avg_~x.offset >= 0] [2019-11-20 08:27:18,735 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2019-11-20 08:27:18,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 08:27:18,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:27:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:18,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 08:27:18,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:27:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:18,795 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 08:27:18,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 08:27:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:18,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 08:27:18,808 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-20 08:27:18,838 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 33 states and 39 transitions. Complement of second has 5 states. [2019-11-20 08:27:18,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 08:27:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 08:27:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-20 08:27:18,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 2 letters. [2019-11-20 08:27:18,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:27:18,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 23 letters. Loop has 2 letters. [2019-11-20 08:27:18,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:27:18,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 4 letters. [2019-11-20 08:27:18,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 08:27:18,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2019-11-20 08:27:18,841 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 08:27:18,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2019-11-20 08:27:18,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 08:27:18,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 08:27:18,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 08:27:18,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 08:27:18,841 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 08:27:18,841 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 08:27:18,841 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 08:27:18,841 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-11-20 08:27:18,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 08:27:18,842 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 08:27:18,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 08:27:18,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 08:27:18 BoogieIcfgContainer [2019-11-20 08:27:18,847 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 08:27:18,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:27:18,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:27:18,847 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:27:18,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:24:28" (3/4) ... [2019-11-20 08:27:18,850 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 08:27:18,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:27:18,850 INFO L168 Benchmark]: Toolchain (without parser) took 170672.05 ms. Allocated memory was 1.0 GB in the beginning and 3.9 GB in the end (delta: 2.9 GB). Free memory was 951.4 MB in the beginning and 1.8 GB in the end (delta: -812.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 11.5 GB. [2019-11-20 08:27:18,851 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:27:18,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 08:27:18,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.68 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. [2019-11-20 08:27:18,851 INFO L168 Benchmark]: Boogie Preprocessor took 27.09 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. [2019-11-20 08:27:18,851 INFO L168 Benchmark]: RCFGBuilder took 344.62 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2019-11-20 08:27:18,852 INFO L168 Benchmark]: BuchiAutomizer took 169947.80 ms. Allocated memory was 1.1 GB in the beginning and 3.9 GB in the end (delta: 2.8 GB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -685.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 11.5 GB. [2019-11-20 08:27:18,852 INFO L168 Benchmark]: Witness Printer took 2.90 ms. Allocated memory is still 3.9 GB. Free memory is still 1.8 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:27:18,853 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.68 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 27.09 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. * RCFGBuilder took 344.62 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 169947.80 ms. Allocated memory was 1.1 GB in the beginning and 3.9 GB in the end (delta: 2.8 GB). Free memory was 1.1 GB in the beginning and 1.8 GB in the end (delta: -685.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 11.5 GB. * Witness Printer took 2.90 ms. Allocated memory is still 3.9 GB. Free memory is still 1.8 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 - 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 11 terminating modules (5 trivial, 6 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x + -4 * i + unknown-#length-unknown[x] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[x] + -2 * i and consists of 9 locations. One deterministic module has affine ranking function 5 * unknown-#length-unknown[x] + -8 * i and consists of 12 locations. One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -1 * x + unknown-#length-unknown[x] + -4 * i and consists of 4 locations. One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[x] and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 169.8s and 12 iterations. TraceHistogramMax:4. Analysis of lassos took 168.3s. Construction of modules took 0.4s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 9. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 41 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 34 states and ocurred in iteration 8. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 107 SDtfs, 154 SDslu, 36 SDs, 0 SdLazy, 284 SolverSat, 55 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU5 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital1194 mio100 ax100 hnf99 lsp358 ukn28 mio100 lsp299 div59 bol100 ite100 ukn100 eq165 hnf93 smp37 dnf2351 smp27 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 189ms VariablesStem: 20 VariablesLoop: 8 DisjunctsStem: 6 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...