./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1a7013a4cfa859e3e95189f90d363983a25fcd0e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:19:07,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:19:07,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:19:07,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:19:07,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:19:07,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:19:07,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:19:07,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:19:07,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:19:07,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:19:07,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:19:07,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:19:07,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:19:07,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:19:07,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:19:07,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:19:07,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:19:07,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:19:07,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:19:07,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:19:07,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:19:07,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:19:07,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:19:07,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:19:07,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:19:07,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:19:07,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:19:07,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:19:07,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:19:07,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:19:07,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:19:07,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:19:07,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:19:07,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:19:07,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:19:07,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:19:07,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:19:07,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:19:07,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:19:07,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:19:07,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:19:07,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 23:19:07,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:19:07,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:19:07,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:19:07,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:19:07,120 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:19:07,120 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:19:07,120 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:19:07,121 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:19:07,121 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:19:07,121 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:19:07,121 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:19:07,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:19:07,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:19:07,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:19:07,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:19:07,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:19:07,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:19:07,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:19:07,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:19:07,123 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:19:07,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:19:07,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:19:07,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:19:07,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:19:07,124 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:19:07,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:19:07,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:19:07,125 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:19:07,126 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:19:07,126 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_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a7013a4cfa859e3e95189f90d363983a25fcd0e [2019-11-19 23:19:07,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:19:07,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:19:07,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:19:07,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:19:07,300 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:19:07,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2019-11-19 23:19:07,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/data/17375c69d/1d0136446429459f882883bb01b62c31/FLAG1b4ee817e [2019-11-19 23:19:07,816 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:19:07,817 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2019-11-19 23:19:07,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/data/17375c69d/1d0136446429459f882883bb01b62c31/FLAG1b4ee817e [2019-11-19 23:19:07,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/data/17375c69d/1d0136446429459f882883bb01b62c31 [2019-11-19 23:19:07,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:19:07,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:19:07,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:19:07,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:19:07,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:19:07,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:19:07" (1/1) ... [2019-11-19 23:19:07,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46484e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:07, skipping insertion in model container [2019-11-19 23:19:07,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:19:07" (1/1) ... [2019-11-19 23:19:07,856 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:19:07,915 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:19:08,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:19:08,302 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:19:08,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:19:08,381 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:19:08,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08 WrapperNode [2019-11-19 23:19:08,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:19:08,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:19:08,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:19:08,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:19:08,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:19:08,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:19:08,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:19:08,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:19:08,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... [2019-11-19 23:19:08,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:19:08,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:19:08,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:19:08,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:19:08,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:19:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:19:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:19:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:19:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:19:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:19:08,786 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:19:08,787 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 23:19:08,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:19:08 BoogieIcfgContainer [2019-11-19 23:19:08,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:19:08,788 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:19:08,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:19:08,791 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:19:08,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:19:08,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:19:07" (1/3) ... [2019-11-19 23:19:08,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2acf965e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:19:08, skipping insertion in model container [2019-11-19 23:19:08,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:19:08,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:19:08" (2/3) ... [2019-11-19 23:19:08,793 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2acf965e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:19:08, skipping insertion in model container [2019-11-19 23:19:08,793 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:19:08,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:19:08" (3/3) ... [2019-11-19 23:19:08,795 INFO L371 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2019-11-19 23:19:08,829 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:19:08,829 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:19:08,829 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:19:08,829 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:19:08,829 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:19:08,830 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:19:08,830 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:19:08,830 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:19:08,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-19 23:19:08,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-19 23:19:08,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:08,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:08,869 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:19:08,870 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-19 23:19:08,870 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:19:08,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-19 23:19:08,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-19 23:19:08,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:08,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:08,872 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:19:08,872 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-19 23:19:08,879 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 3#L569true [2019-11-19 23:19:08,880 INFO L796 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 8#L564true goto; 4#L567true call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 11#L564-1true assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 6#L566true assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 3#L569true [2019-11-19 23:19:08,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:08,885 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-19 23:19:08,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:08,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841431940] [2019-11-19 23:19:08,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,072 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2019-11-19 23:19:09,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:09,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20486746] [2019-11-19 23:19:09,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:09,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:09,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20486746] [2019-11-19 23:19:09,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:19:09,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 23:19:09,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027547610] [2019-11-19 23:19:09,108 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 23:19:09,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:19:09,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:19:09,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:19:09,126 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-19 23:19:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:19:09,132 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-19 23:19:09,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:19:09,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-19 23:19:09,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-19 23:19:09,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2019-11-19 23:19:09,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 23:19:09,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-19 23:19:09,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-19 23:19:09,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:19:09,141 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-19 23:19:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-19 23:19:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-19 23:19:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 23:19:09,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-19 23:19:09,166 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-19 23:19:09,166 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-19 23:19:09,166 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:19:09,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-19 23:19:09,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-19 23:19:09,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:09,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:09,168 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:19:09,168 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:19:09,168 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 39#L569 [2019-11-19 23:19:09,168 INFO L796 eck$LassoCheckResult]: Loop: 39#L569 goto; 42#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 46#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 40#L564 goto; 41#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 44#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 45#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 39#L569 [2019-11-19 23:19:09,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:09,169 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-11-19 23:19:09,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:09,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145185017] [2019-11-19 23:19:09,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,237 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2019-11-19 23:19:09,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:09,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925577163] [2019-11-19 23:19:09,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,278 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:09,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:09,279 INFO L82 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2019-11-19 23:19:09,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:09,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982929599] [2019-11-19 23:19:09,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:09,439 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:09,704 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-19 23:19:10,578 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2019-11-19 23:19:10,987 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-11-19 23:19:11,000 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:19:11,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:19:11,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:19:11,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:19:11,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:19:11,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:11,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:19:11,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:19:11,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2019-11-19 23:19:11,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:19:11,003 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:19:11,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:11,836 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2019-11-19 23:19:12,004 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-11-19 23:19:12,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:12,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:12,261 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-11-19 23:19:12,631 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:19:12,636 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:12,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:12,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:12,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,751 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:12,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:12,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:12,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:12,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:12,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:12,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:12,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:12,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:19:12,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:12,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:12,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:12,914 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 [2019-11-19 23:19:12,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:12,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:12,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:19:12,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:12,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:12,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:12,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:12,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:12,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:12,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:12,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:12,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:12,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:12,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:12,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:12,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:13,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:13,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:13,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:13,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:13,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:13,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:13,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:13,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:13,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:13,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:13,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:13,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:13,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:13,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:13,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:13,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:13,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:13,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:13,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:13,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:13,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:13,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:13,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:13,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:13,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:13,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:13,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:13,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:13,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:13,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:13,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:13,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:13,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:13,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:13,171 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:19:13,251 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-19 23:19:13,251 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:13,287 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:13,316 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:19:13,316 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:19:13,317 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1 + 1 Supporting invariants [] [2019-11-19 23:19:13,507 INFO L297 tatePredicateManager]: 37 out of 37 supporting invariants were superfluous and have been removed [2019-11-19 23:19:13,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 23:19:13,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:13,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:19:13,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:13,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 23:19:13,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:13,658 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-19 23:19:13,660 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:13,669 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:13,670 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:13,670 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2019-11-19 23:19:13,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:13,687 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 23:19:13,688 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 5 states. [2019-11-19 23:19:13,735 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 20 states and 27 transitions. Complement of second has 6 states. [2019-11-19 23:19:13,736 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 [2019-11-19 23:19:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 23:19:13,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-19 23:19:13,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2019-11-19 23:19:13,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:13,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2019-11-19 23:19:13,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:13,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2019-11-19 23:19:13,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:13,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2019-11-19 23:19:13,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:13,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2019-11-19 23:19:13,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-19 23:19:13,744 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-19 23:19:13,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2019-11-19 23:19:13,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:19:13,744 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-19 23:19:13,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2019-11-19 23:19:13,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-11-19 23:19:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-19 23:19:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-19 23:19:13,746 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-19 23:19:13,746 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-19 23:19:13,746 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 23:19:13,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-19 23:19:13,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:13,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:13,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:13,747 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 23:19:13,748 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:19:13,748 INFO L794 eck$LassoCheckResult]: Stem: 277#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 267#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 268#L569 goto; 272#L560 [2019-11-19 23:19:13,748 INFO L796 eck$LassoCheckResult]: Loop: 272#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 278#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 279#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 272#L560 [2019-11-19 23:19:13,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:13,748 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2019-11-19 23:19:13,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:13,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967626125] [2019-11-19 23:19:13,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:13,783 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:13,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:13,783 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2019-11-19 23:19:13,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:13,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051875646] [2019-11-19 23:19:13,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:13,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:13,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:13,798 INFO L82 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2019-11-19 23:19:13,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:13,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519841255] [2019-11-19 23:19:13,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:13,856 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:14,714 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 101 [2019-11-19 23:19:14,988 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-11-19 23:19:14,991 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:19:14,991 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:19:14,991 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:19:14,991 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:19:14,991 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:19:14,991 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:14,991 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:19:14,991 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:19:14,991 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2019-11-19 23:19:14,992 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:19:14,992 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:19:14,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,485 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-11-19 23:19:15,592 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-11-19 23:19:15,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:15,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:16,163 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:19:16,164 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:16,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:16,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:16,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:16,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:16,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:16,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:16,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:16,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:16,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:16,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:19:16,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:16,247 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 [2019-11-19 23:19:16,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,275 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:16,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:16,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,308 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:19:16,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:16,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:16,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:16,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:16,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:16,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:16,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:16,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:16,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,420 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:19:16,439 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 23:19:16,439 INFO L444 ModelExtractionUtils]: 6 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:16,447 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:16,450 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:19:16,450 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:19:16,450 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2 Supporting invariants [] [2019-11-19 23:19:16,571 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2019-11-19 23:19:16,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 23:19:16,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 23:19:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:16,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:19:16,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:16,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:19:16,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:16,653 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:16,653 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2019-11-19 23:19:16,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:19:16,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 23:19:16,661 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:16,705 INFO L567 ElimStorePlain]: treesize reduction 59, result has 37.9 percent of original size [2019-11-19 23:19:16,705 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:16,705 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:36 [2019-11-19 23:19:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:16,726 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 23:19:16,726 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-19 23:19:16,764 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 34 states and 43 transitions. Complement of second has 7 states. [2019-11-19 23:19:16,766 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 [2019-11-19 23:19:16,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 23:19:16,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-19 23:19:16,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-19 23:19:16,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:16,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-19 23:19:16,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:16,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-19 23:19:16,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:16,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2019-11-19 23:19:16,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:16,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2019-11-19 23:19:16,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-19 23:19:16,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 23:19:16,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2019-11-19 23:19:16,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:19:16,771 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-19 23:19:16,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2019-11-19 23:19:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2019-11-19 23:19:16,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 23:19:16,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2019-11-19 23:19:16,772 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-11-19 23:19:16,772 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-11-19 23:19:16,772 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 23:19:16,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2019-11-19 23:19:16,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:16,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:16,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:16,775 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:19:16,775 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:19:16,775 INFO L794 eck$LassoCheckResult]: Stem: 512#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 505#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 506#L569 goto; 507#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 515#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 503#L564 goto; 504#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 510#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 511#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 516#L569 goto; 517#L560 [2019-11-19 23:19:16,775 INFO L796 eck$LassoCheckResult]: Loop: 517#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 513#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 514#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 517#L560 [2019-11-19 23:19:16,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:16,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2019-11-19 23:19:16,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:16,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694198061] [2019-11-19 23:19:16,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:16,848 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:16,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:16,849 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2019-11-19 23:19:16,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:16,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061926753] [2019-11-19 23:19:16,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:16,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:16,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:16,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2019-11-19 23:19:16,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:16,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688085771] [2019-11-19 23:19:16,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:17,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688085771] [2019-11-19 23:19:17,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661265901] [2019-11-19 23:19:17,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:19:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:17,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-19 23:19:17,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:17,096 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2019-11-19 23:19:17,096 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:17,105 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:17,106 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:17,106 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:9 [2019-11-19 23:19:17,163 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:17,163 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 39 [2019-11-19 23:19:17,164 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:17,174 INFO L567 ElimStorePlain]: treesize reduction 20, result has 50.0 percent of original size [2019-11-19 23:19:17,174 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:17,174 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:11 [2019-11-19 23:19:17,190 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:17,190 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2019-11-19 23:19:17,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 23:19:17,192 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-11-19 23:19:17,200 INFO L567 ElimStorePlain]: treesize reduction 17, result has 15.0 percent of original size [2019-11-19 23:19:17,200 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:17,200 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2019-11-19 23:19:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:17,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:19:17,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2019-11-19 23:19:17,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071292011] [2019-11-19 23:19:17,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:19:17,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-19 23:19:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:19:17,300 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 11 states. [2019-11-19 23:19:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:19:17,430 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2019-11-19 23:19:17,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-19 23:19:17,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2019-11-19 23:19:17,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:17,433 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2019-11-19 23:19:17,433 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-19 23:19:17,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 23:19:17,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2019-11-19 23:19:17,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:19:17,434 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-11-19 23:19:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2019-11-19 23:19:17,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2019-11-19 23:19:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-19 23:19:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-11-19 23:19:17,436 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-19 23:19:17,436 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-19 23:19:17,436 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 23:19:17,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2019-11-19 23:19:17,436 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:17,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:17,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:17,437 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:19:17,437 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:19:17,437 INFO L794 eck$LassoCheckResult]: Stem: 631#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 625#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 626#L569 goto; 629#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 636#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 637#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 627#L564 goto; 628#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 632#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 633#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 638#L569 goto; 639#L560 [2019-11-19 23:19:17,437 INFO L796 eck$LassoCheckResult]: Loop: 639#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 634#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 635#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 639#L560 [2019-11-19 23:19:17,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:17,438 INFO L82 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2019-11-19 23:19:17,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:17,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241173121] [2019-11-19 23:19:17,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:17,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:17,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241173121] [2019-11-19 23:19:17,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:19:17,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 23:19:17,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246745975] [2019-11-19 23:19:17,579 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:19:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:17,579 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2019-11-19 23:19:17,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:17,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643200305] [2019-11-19 23:19:17,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:17,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:19:17,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:19:17,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 23:19:17,686 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 6 states. [2019-11-19 23:19:17,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:19:17,745 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2019-11-19 23:19:17,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:19:17,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2019-11-19 23:19:17,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:17,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 23 transitions. [2019-11-19 23:19:17,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-19 23:19:17,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 23:19:17,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2019-11-19 23:19:17,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:19:17,747 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-19 23:19:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2019-11-19 23:19:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-11-19 23:19:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 23:19:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-19 23:19:17,749 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-19 23:19:17,749 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-19 23:19:17,749 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 23:19:17,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2019-11-19 23:19:17,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:17,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:17,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:17,751 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:19:17,751 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:19:17,751 INFO L794 eck$LassoCheckResult]: Stem: 682#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 675#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 676#L569 goto; 679#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 687#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 688#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 681#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 691#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 692#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 677#L564 goto; 678#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 683#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 684#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 689#L569 goto; 690#L560 [2019-11-19 23:19:17,751 INFO L796 eck$LassoCheckResult]: Loop: 690#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 685#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 686#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 690#L560 [2019-11-19 23:19:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:17,751 INFO L82 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2019-11-19 23:19:17,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:17,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271421495] [2019-11-19 23:19:17,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,828 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:17,828 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2019-11-19 23:19:17,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:17,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532173428] [2019-11-19 23:19:17,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,851 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2019-11-19 23:19:17,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:17,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064113007] [2019-11-19 23:19:17,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:17,920 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:19,635 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 199 DAG size of output: 147 [2019-11-19 23:19:20,088 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-11-19 23:19:20,091 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:19:20,091 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:19:20,091 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:19:20,091 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:19:20,091 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:19:20,092 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:20,092 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:19:20,092 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:19:20,092 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2019-11-19 23:19:20,092 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:19:20,092 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:19:20,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,650 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2019-11-19 23:19:20,760 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-11-19 23:19:20,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:20,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:19:21,291 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:19:21,291 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:21,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:19:21,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:19:21,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,316 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,330 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:21,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:21,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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 [2019-11-19 23:19:21,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:19:21,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:19:21,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,442 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 23:19:21,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:21,467 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 [2019-11-19 23:19:21,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:21,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 23:19:21,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:19:21,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:19:21,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:19:21,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:19:21,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:19:21,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,511 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:19:21,537 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-19 23:19:21,537 INFO L444 ModelExtractionUtils]: 12 out of 19 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/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) [2019-11-19 23:19:21,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:19:21,550 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 23:19:21,551 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:19:21,551 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3 Supporting invariants [] [2019-11-19 23:19:21,675 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2019-11-19 23:19:21,676 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 23:19:21,676 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 23:19:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:21,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:19:21,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:21,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:19:21,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:21,746 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:21,746 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2019-11-19 23:19:21,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:19:21,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 23:19:21,748 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:21,771 INFO L567 ElimStorePlain]: treesize reduction 59, result has 37.9 percent of original size [2019-11-19 23:19:21,771 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:21,771 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:36 [2019-11-19 23:19:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:21,785 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 23:19:21,785 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-19 23:19:21,805 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 30 states and 35 transitions. Complement of second has 7 states. [2019-11-19 23:19:21,805 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 [2019-11-19 23:19:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 23:19:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-11-19 23:19:21,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 23:19:21,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:21,806 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 23:19:21,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:21,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:19:21,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:21,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 23:19:21,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:21,892 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:21,893 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2019-11-19 23:19:21,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-19 23:19:21,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:19:21,896 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:21,925 INFO L567 ElimStorePlain]: treesize reduction 43, result has 60.2 percent of original size [2019-11-19 23:19:21,926 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-19 23:19:21,926 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:63 [2019-11-19 23:19:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:21,957 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 23:19:21,957 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-19 23:19:21,991 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 51 states and 59 transitions. Complement of second has 9 states. [2019-11-19 23:19:21,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-19 23:19:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 23:19:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-11-19 23:19:21,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 23:19:21,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:21,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2019-11-19 23:19:21,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:21,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2019-11-19 23:19:21,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:19:21,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2019-11-19 23:19:21,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:21,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2019-11-19 23:19:21,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-19 23:19:21,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 23:19:21,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2019-11-19 23:19:21,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 23:19:21,996 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2019-11-19 23:19:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2019-11-19 23:19:21,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-19 23:19:21,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-19 23:19:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-11-19 23:19:21,999 INFO L711 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-11-19 23:19:21,999 INFO L591 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-11-19 23:19:22,000 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 23:19:22,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2019-11-19 23:19:22,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 23:19:22,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:19:22,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:19:22,001 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:19:22,001 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 23:19:22,001 INFO L794 eck$LassoCheckResult]: Stem: 1083#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1076#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 1077#L569 goto; 1078#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1100#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1093#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1094#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1108#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1107#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 1106#L564 goto; 1104#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1081#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1082#L566 assume 0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2);havoc f_#t~mem14; 1097#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1099#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1096#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 1095#L569 goto; 1091#L560 [2019-11-19 23:19:22,001 INFO L796 eck$LassoCheckResult]: Loop: 1091#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1085#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1086#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1091#L560 [2019-11-19 23:19:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:22,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2019-11-19 23:19:22,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:22,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552995792] [2019-11-19 23:19:22,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-19 23:19:22,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552995792] [2019-11-19 23:19:22,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388041938] [2019-11-19 23:19:22,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8cfa019e-9a08-439b-a79a-0c537885cf93/bin/uautomizer/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:19:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:19:22,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-19 23:19:22,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:19:22,261 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2019-11-19 23:19:22,262 INFO L343 Elim1Store]: treesize reduction 92, result has 49.7 percent of original size [2019-11-19 23:19:22,262 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 98 [2019-11-19 23:19:22,263 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,323 INFO L567 ElimStorePlain]: treesize reduction 32, result has 69.2 percent of original size [2019-11-19 23:19:22,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-19 23:19:22,325 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,325 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:130, output treesize:21 [2019-11-19 23:19:22,370 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:22,370 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 49 [2019-11-19 23:19:22,371 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,388 INFO L567 ElimStorePlain]: treesize reduction 30, result has 45.5 percent of original size [2019-11-19 23:19:22,389 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,389 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:25 [2019-11-19 23:19:22,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:19:22,420 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 23:19:22,441 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:22,442 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 62 [2019-11-19 23:19:22,442 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,447 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2019-11-19 23:19:22,447 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,492 INFO L567 ElimStorePlain]: treesize reduction 20, result has 72.6 percent of original size [2019-11-19 23:19:22,493 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-19 23:19:22,493 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:87, output treesize:53 [2019-11-19 23:19:22,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:19:22,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 23:19:22,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 23:19:22,641 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 23:19:22,641 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 65 [2019-11-19 23:19:22,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,651 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2019-11-19 23:19:22,652 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,692 INFO L567 ElimStorePlain]: treesize reduction 52, result has 35.0 percent of original size [2019-11-19 23:19:22,692 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 23:19:22,692 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:101, output treesize:28 [2019-11-19 23:19:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:19:22,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:19:22,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-11-19 23:19:22,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598042349] [2019-11-19 23:19:22,714 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:19:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:19:22,714 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 5 times [2019-11-19 23:19:22,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:19:22,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648621370] [2019-11-19 23:19:22,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:19:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:19:22,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:19:22,899 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-11-19 23:19:22,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:19:22,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-19 23:19:22,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-11-19 23:19:22,900 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand 13 states. [2019-11-19 23:19:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:19:23,189 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2019-11-19 23:19:23,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-19 23:19:23,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 35 transitions. [2019-11-19 23:19:23,190 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:19:23,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2019-11-19 23:19:23,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 23:19:23,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 23:19:23,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 23:19:23,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:19:23,191 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:19:23,191 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:19:23,191 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:19:23,191 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-19 23:19:23,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:19:23,191 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 23:19:23,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 23:19:23,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:19:23 BoogieIcfgContainer [2019-11-19 23:19:23,197 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:19:23,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:19:23,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:19:23,198 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:19:23,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:19:08" (3/4) ... [2019-11-19 23:19:23,200 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:19:23,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:19:23,201 INFO L168 Benchmark]: Toolchain (without parser) took 15358.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 282.6 MB). Free memory was 940.7 MB in the beginning and 1.2 GB in the end (delta: -282.4 MB). Peak memory consumption was 143.2 kB. Max. memory is 11.5 GB. [2019-11-19 23:19:23,201 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-19 23:19:23,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:19:23,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:19:23,202 INFO L168 Benchmark]: Boogie Preprocessor took 26.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:19:23,202 INFO L168 Benchmark]: RCFGBuilder took 340.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:19:23,203 INFO L168 Benchmark]: BuchiAutomizer took 14408.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 145.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -131.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:19:23,203 INFO L168 Benchmark]: Witness Printer took 2.78 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:19:23,205 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 538.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 340.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14408.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 145.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -131.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[j][j] + 1 and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[k_ref][k_ref] + -1 * unknown-#memory_int-unknown[i][i] and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.3s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 12.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 73 SDtfs, 70 SDslu, 165 SDs, 0 SdLazy, 238 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital878 mio100 ax103 hnf100 lsp94 ukn41 mio100 lsp36 div100 bol100 ite100 ukn100 eq185 hnf88 smp93 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...