./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.11-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.11-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 6d6fa40570ac98fcded670ccb8a913ea07efa9b1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:44:31,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:44:31,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:44:31,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:44:31,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:44:31,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:44:31,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:44:31,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:44:31,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:44:31,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:44:31,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:44:31,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:44:31,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:44:31,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:44:31,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:44:31,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:44:31,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:44:31,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:44:31,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:44:31,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:44:31,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:44:31,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:44:31,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:44:31,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:44:31,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:44:31,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:44:31,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:44:31,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:44:31,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:44:31,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:44:31,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:44:31,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:44:31,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:44:31,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:44:31,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:44:31,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:44:31,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:44:31,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:44:31,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:44:31,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:44:31,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:44:31,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:44:31,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:44:31,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:44:31,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:44:31,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:44:31,858 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:44:31,858 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:44:31,858 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:44:31,858 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:44:31,859 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:44:31,859 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:44:31,859 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:44:31,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:44:31,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:44:31,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:44:31,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:44:31,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:44:31,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:44:31,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:44:31,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:44:31,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:44:31,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:44:31,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:44:31,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:44:31,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:44:31,862 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:44:31,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:44:31,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:44:31,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:44:31,863 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:44:31,864 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:44:31,864 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6fa40570ac98fcded670ccb8a913ea07efa9b1 [2020-11-29 19:44:32,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:44:32,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:44:32,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:44:32,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:44:32,265 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:44:32,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/b.11-alloca.i [2020-11-29 19:44:32,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/data/a7fba00e1/879529b7c7cd49219f6742bac6f386aa/FLAG9211f719e [2020-11-29 19:44:32,994 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:44:32,995 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/sv-benchmarks/c/termination-memory-alloca/b.11-alloca.i [2020-11-29 19:44:33,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/data/a7fba00e1/879529b7c7cd49219f6742bac6f386aa/FLAG9211f719e [2020-11-29 19:44:33,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/data/a7fba00e1/879529b7c7cd49219f6742bac6f386aa [2020-11-29 19:44:33,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:44:33,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:44:33,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:44:33,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:44:33,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:44:33,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6256e73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33, skipping insertion in model container [2020-11-29 19:44:33,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:44:33,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:44:33,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:44:33,675 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:44:33,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:44:33,798 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:44:33,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33 WrapperNode [2020-11-29 19:44:33,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:44:33,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:44:33,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:44:33,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:44:33,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:44:33,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:44:33,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:44:33,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:44:33,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... [2020-11-29 19:44:33,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:44:33,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:44:33,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:44:33,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:44:33,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:44:34,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:44:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:44:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:44:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:44:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:44:34,678 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:44:34,680 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 19:44:34,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:44:34 BoogieIcfgContainer [2020-11-29 19:44:34,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:44:34,684 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:44:34,685 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:44:34,689 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:44:34,690 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:44:34,690 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:44:33" (1/3) ... [2020-11-29 19:44:34,692 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@606a0f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:44:34, skipping insertion in model container [2020-11-29 19:44:34,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:44:34,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:44:33" (2/3) ... [2020-11-29 19:44:34,693 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@606a0f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:44:34, skipping insertion in model container [2020-11-29 19:44:34,693 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:44:34,693 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:44:34" (3/3) ... [2020-11-29 19:44:34,695 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.11-alloca.i [2020-11-29 19:44:34,772 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:44:34,773 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:44:34,797 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:44:34,798 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:44:34,798 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:44:34,798 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:44:34,798 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:44:34,798 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:44:34,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-29 19:44:34,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:34,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:34,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:34,848 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:44:34,848 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:34,849 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:44:34,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-29 19:44:34,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:34,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:34,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:34,852 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:44:34,853 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:34,861 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 5#L559-2true [2020-11-29 19:44:34,862 INFO L796 eck$LassoCheckResult]: Loop: 5#L559-2true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 10#L555-1true assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647 - test_fun_#t~mem6; 14#L555-3true test_fun_#t~short13 := test_fun_#t~short8; 16#L555-4true assume test_fun_#t~short13; 6#L555-9true test_fun_#t~short16 := test_fun_#t~short13; 8#L555-10true assume !test_fun_#t~short16; 11#L555-12true assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 7#L556true assume test_fun_#t~mem17 > test_fun_#t~mem18;havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem19 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem19 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem19; 5#L559-2true [2020-11-29 19:44:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:34,870 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 19:44:34,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:34,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948807594] [2020-11-29 19:44:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:35,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1790206705, now seen corresponding path program 1 times [2020-11-29 19:44:35,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:35,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997708067] [2020-11-29 19:44:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:35,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997708067] [2020-11-29 19:44:35,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:35,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:44:35,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601907012] [2020-11-29 19:44:35,182 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:35,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:35,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:44:35,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:44:35,204 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2020-11-29 19:44:35,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:35,297 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-11-29 19:44:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:44:35,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-11-29 19:44:35,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-11-29 19:44:35,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. [2020-11-29 19:44:35,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 19:44:35,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 19:44:35,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2020-11-29 19:44:35,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:35,310 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-11-29 19:44:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2020-11-29 19:44:35,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-11-29 19:44:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 19:44:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2020-11-29 19:44:35,343 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-29 19:44:35,344 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-11-29 19:44:35,344 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:44:35,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2020-11-29 19:44:35,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-11-29 19:44:35,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:35,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:35,346 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:44:35,346 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:35,347 INFO L794 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 61#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 53#L559-2 [2020-11-29 19:44:35,347 INFO L796 eck$LassoCheckResult]: Loop: 53#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 54#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647 - test_fun_#t~mem6; 60#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 63#L555-4 assume test_fun_#t~short13; 64#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 58#L555-10 assume test_fun_#t~short16;call test_fun_#t~mem14 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem15 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short16 := test_fun_#t~mem14 + test_fun_#t~mem15 > 0; 59#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 56#L556 assume test_fun_#t~mem17 > test_fun_#t~mem18;havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem19 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem19 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem19; 53#L559-2 [2020-11-29 19:44:35,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:35,348 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-29 19:44:35,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:35,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668993114] [2020-11-29 19:44:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,406 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1790208627, now seen corresponding path program 1 times [2020-11-29 19:44:35,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:35,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076966651] [2020-11-29 19:44:35,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,448 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:35,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:35,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1099647153, now seen corresponding path program 1 times [2020-11-29 19:44:35,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:35,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224536673] [2020-11-29 19:44:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:35,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:35,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:35,951 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2020-11-29 19:44:36,523 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2020-11-29 19:44:36,703 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-29 19:44:36,723 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:44:36,726 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:44:36,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:44:36,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:44:36,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:44:36,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:36,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:44:36,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:44:36,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11-alloca.i_Iteration2_Lasso [2020-11-29 19:44:36,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:44:36,735 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:44:36,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:36,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,269 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-11-29 19:44:37,439 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-11-29 19:44:37,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:37,808 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2020-11-29 19:44:38,352 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:44:38,367 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:38,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:38,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:38,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:38,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:38,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:38,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:38,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:38,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:38,397 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:38,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:38,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:38,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:38,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:38,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:38,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:38,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:38,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:44:38,743 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 19:44:38,744 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:44:38,773 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:38,778 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:44:38,778 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:44:38,779 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 Supporting invariants [] [2020-11-29 19:44:38,919 INFO L297 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2020-11-29 19:44:38,929 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:44:38,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:38,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:44:38,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:44:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:39,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 19:44:39,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:44:39,075 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:44:39,085 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:44:39,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:39,202 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 [2020-11-29 19:44:39,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-11-29 19:44:39,372 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 31 states and 45 transitions. Complement of second has 8 states. [2020-11-29 19:44:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 19:44:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 19:44:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-11-29 19:44:39,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-29 19:44:39,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:39,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 10 letters. Loop has 8 letters. [2020-11-29 19:44:39,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:39,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 16 letters. [2020-11-29 19:44:39,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:39,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 45 transitions. [2020-11-29 19:44:39,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-11-29 19:44:39,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 45 transitions. [2020-11-29 19:44:39,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 19:44:39,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 19:44:39,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 45 transitions. [2020-11-29 19:44:39,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:44:39,382 INFO L691 BuchiCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-29 19:44:39,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 45 transitions. [2020-11-29 19:44:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-11-29 19:44:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 19:44:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 43 transitions. [2020-11-29 19:44:39,390 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 43 transitions. [2020-11-29 19:44:39,391 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 43 transitions. [2020-11-29 19:44:39,391 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:44:39,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 43 transitions. [2020-11-29 19:44:39,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-11-29 19:44:39,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:39,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:39,398 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 19:44:39,401 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:39,401 INFO L794 eck$LassoCheckResult]: Stem: 258#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 256#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 257#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 240#L555-1 [2020-11-29 19:44:39,402 INFO L796 eck$LassoCheckResult]: Loop: 240#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647 - test_fun_#t~mem6; 254#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 259#L555-4 assume test_fun_#t~short13; 243#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 244#L555-10 assume test_fun_#t~short16;call test_fun_#t~mem14 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem15 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short16 := test_fun_#t~mem14 + test_fun_#t~mem15 > 0; 251#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 246#L556 assume !(test_fun_#t~mem17 > test_fun_#t~mem18);havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem20 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem21 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 247#L559 assume !(test_fun_#t~mem20 == test_fun_#t~mem21);havoc test_fun_#t~mem21;havoc test_fun_#t~mem20;call test_fun_#t~mem23 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem23 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem23; 239#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 240#L555-1 [2020-11-29 19:44:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:39,403 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-29 19:44:39,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:39,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966081531] [2020-11-29 19:44:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:39,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:39,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:39,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:39,486 INFO L82 PathProgramCache]: Analyzing trace with hash 572463690, now seen corresponding path program 1 times [2020-11-29 19:44:39,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:39,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751474585] [2020-11-29 19:44:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:39,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:39,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:39,556 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:39,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:39,557 INFO L82 PathProgramCache]: Analyzing trace with hash -198955769, now seen corresponding path program 1 times [2020-11-29 19:44:39,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:39,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130957637] [2020-11-29 19:44:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:39,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:39,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:39,624 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:39,991 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2020-11-29 19:44:40,710 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2020-11-29 19:44:40,988 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-29 19:44:40,993 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:44:40,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:44:40,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:44:40,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:44:40,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:44:40,994 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:40,994 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:44:40,994 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:44:40,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11-alloca.i_Iteration3_Lasso [2020-11-29 19:44:40,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:44:40,994 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:44:41,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:41,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,086 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-11-29 19:44:42,290 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-11-29 19:44:42,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:42,793 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-29 19:44:43,410 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-29 19:44:43,558 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-29 19:44:43,624 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:44:43,624 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:43,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,652 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,681 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:43,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:43,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:43,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,931 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:43,931 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:43,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:43,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:43,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:43,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:43,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:43,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:43,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:43,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:43,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:43,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:44,036 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 [2020-11-29 19:44:44,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:44,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,264 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,369 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:44:44,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:44:44,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:44:44,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,648 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:44,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:44,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:44,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:44,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:44,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:44,716 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 19:44:44,716 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:44:44,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:44,755 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-29 19:44:44,756 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 19:44:44,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:44:44,886 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-29 19:44:44,886 INFO L444 ModelExtractionUtils]: 40 out of 56 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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) [2020-11-29 19:44:44,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:44,893 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-11-29 19:44:44,893 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:44:44,893 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2 Supporting invariants [] [2020-11-29 19:44:45,016 INFO L297 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2020-11-29 19:44:45,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:44:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:45,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:44:45,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:44:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:45,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 19:44:45,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:44:45,101 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:44:45,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:44:45,339 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:44:45,339 INFO L384 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 49 treesize of output 66 [2020-11-29 19:44:45,344 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-29 19:44:45,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 19:44:45,351 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:44:45,402 INFO L625 ElimStorePlain]: treesize reduction 131, result has 22.0 percent of original size [2020-11-29 19:44:45,404 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:44:45,405 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:49, output treesize:37 [2020-11-29 19:44:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:45,449 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-11-29 19:44:45,449 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 43 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-11-29 19:44:45,663 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 43 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 64 states and 97 transitions. Complement of second has 10 states. [2020-11-29 19:44:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-29 19:44:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 19:44:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2020-11-29 19:44:45,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 3 letters. Loop has 9 letters. [2020-11-29 19:44:45,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:45,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 12 letters. Loop has 9 letters. [2020-11-29 19:44:45,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:45,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 3 letters. Loop has 18 letters. [2020-11-29 19:44:45,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:45,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 97 transitions. [2020-11-29 19:44:45,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-11-29 19:44:45,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 64 states and 97 transitions. [2020-11-29 19:44:45,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 19:44:45,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-11-29 19:44:45,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 97 transitions. [2020-11-29 19:44:45,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:44:45,714 INFO L691 BuchiCegarLoop]: Abstraction has 64 states and 97 transitions. [2020-11-29 19:44:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 97 transitions. [2020-11-29 19:44:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2020-11-29 19:44:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-11-29 19:44:45,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 94 transitions. [2020-11-29 19:44:45,719 INFO L714 BuchiCegarLoop]: Abstraction has 62 states and 94 transitions. [2020-11-29 19:44:45,719 INFO L594 BuchiCegarLoop]: Abstraction has 62 states and 94 transitions. [2020-11-29 19:44:45,719 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:44:45,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 94 transitions. [2020-11-29 19:44:45,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-11-29 19:44:45,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:45,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:45,737 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:44:45,737 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:45,737 INFO L794 eck$LassoCheckResult]: Stem: 503#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 501#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 502#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 540#L555-1 assume !test_fun_#t~short8; 504#L555-3 [2020-11-29 19:44:45,737 INFO L796 eck$LassoCheckResult]: Loop: 504#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 505#L555-4 assume test_fun_#t~short13; 507#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 495#L555-10 assume test_fun_#t~short16;call test_fun_#t~mem14 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem15 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short16 := test_fun_#t~mem14 + test_fun_#t~mem15 > 0; 496#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 490#L556 assume !(test_fun_#t~mem17 > test_fun_#t~mem18);havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem20 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem21 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 491#L559 assume test_fun_#t~mem20 == test_fun_#t~mem21;havoc test_fun_#t~mem21;havoc test_fun_#t~mem20;call test_fun_#t~mem22 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem22 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem22; 483#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 484#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647 - test_fun_#t~mem6; 504#L555-3 [2020-11-29 19:44:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:45,738 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-11-29 19:44:45,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:45,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296627833] [2020-11-29 19:44:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:45,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:45,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:45,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash -162891098, now seen corresponding path program 1 times [2020-11-29 19:44:45,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:45,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022973395] [2020-11-29 19:44:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:45,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:45,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:45,880 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:45,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:45,884 INFO L82 PathProgramCache]: Analyzing trace with hash 2029276831, now seen corresponding path program 1 times [2020-11-29 19:44:45,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:45,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857094133] [2020-11-29 19:44:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:45,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857094133] [2020-11-29 19:44:45,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:45,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:44:45,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180346829] [2020-11-29 19:44:46,197 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-11-29 19:44:46,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:46,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:44:46,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:44:46,256 INFO L87 Difference]: Start difference. First operand 62 states and 94 transitions. cyclomatic complexity: 36 Second operand 4 states. [2020-11-29 19:44:46,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:46,306 INFO L93 Difference]: Finished difference Result 90 states and 130 transitions. [2020-11-29 19:44:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:44:46,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 130 transitions. [2020-11-29 19:44:46,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2020-11-29 19:44:46,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 90 states and 130 transitions. [2020-11-29 19:44:46,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-11-29 19:44:46,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-11-29 19:44:46,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 130 transitions. [2020-11-29 19:44:46,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:44:46,315 INFO L691 BuchiCegarLoop]: Abstraction has 90 states and 130 transitions. [2020-11-29 19:44:46,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 130 transitions. [2020-11-29 19:44:46,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 70. [2020-11-29 19:44:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-11-29 19:44:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 102 transitions. [2020-11-29 19:44:46,323 INFO L714 BuchiCegarLoop]: Abstraction has 70 states and 102 transitions. [2020-11-29 19:44:46,323 INFO L594 BuchiCegarLoop]: Abstraction has 70 states and 102 transitions. [2020-11-29 19:44:46,323 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:44:46,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 102 transitions. [2020-11-29 19:44:46,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-11-29 19:44:46,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:46,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:46,326 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:44:46,326 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:46,326 INFO L794 eck$LassoCheckResult]: Stem: 668#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 666#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 667#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 698#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647 - test_fun_#t~mem6; 669#L555-3 [2020-11-29 19:44:46,326 INFO L796 eck$LassoCheckResult]: Loop: 669#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 670#L555-4 assume test_fun_#t~short13; 650#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 651#L555-10 assume test_fun_#t~short16;call test_fun_#t~mem14 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem15 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short16 := test_fun_#t~mem14 + test_fun_#t~mem15 > 0; 657#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 653#L556 assume !(test_fun_#t~mem17 > test_fun_#t~mem18);havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem20 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem21 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 654#L559 assume test_fun_#t~mem20 == test_fun_#t~mem21;havoc test_fun_#t~mem21;havoc test_fun_#t~mem20;call test_fun_#t~mem22 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem22 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem22; 646#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 647#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 2147483647 - test_fun_#t~mem6; 669#L555-3 [2020-11-29 19:44:46,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:46,327 INFO L82 PathProgramCache]: Analyzing trace with hash 925670, now seen corresponding path program 1 times [2020-11-29 19:44:46,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:46,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861697802] [2020-11-29 19:44:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:46,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:46,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:46,357 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:46,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:46,358 INFO L82 PathProgramCache]: Analyzing trace with hash -162891098, now seen corresponding path program 2 times [2020-11-29 19:44:46,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:46,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740162466] [2020-11-29 19:44:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:46,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:46,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:46,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:46,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:46,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1872663455, now seen corresponding path program 1 times [2020-11-29 19:44:46,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:46,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368854658] [2020-11-29 19:44:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:46,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:46,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:46,437 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:46,798 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2020-11-29 19:44:47,427 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2020-11-29 19:44:47,634 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-29 19:44:47,637 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:44:47,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:44:47,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:44:47,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:44:47,637 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:44:47,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:47,638 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:44:47,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:44:47,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11-alloca.i_Iteration5_Lasso [2020-11-29 19:44:47,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:44:47,638 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:44:47,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,752 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-11-29 19:44:48,941 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-11-29 19:44:48,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:48,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:44:49,253 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-11-29 19:44:49,429 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2020-11-29 19:44:50,003 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-29 19:44:50,215 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-11-29 19:44:50,400 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:44:50,400 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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) [2020-11-29 19:44:50,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:50,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:50,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:50,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:50,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:50,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:50,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:50,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:50,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:50,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:50,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:50,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:50,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:50,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:50,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:50,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:50,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:50,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:50,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:50,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:50,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:50,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:50,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:50,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:50,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:50,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:50,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:44:50,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:44:50,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:50,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:44:50,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:44:50,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/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 [2020-11-29 19:44:50,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 19:44:50,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:44:50,600 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 19:44:50,601 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 19:44:50,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:44:50,667 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-29 19:44:50,667 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 19:44:50,777 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:44:50,864 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 19:44:50,864 INFO L444 ModelExtractionUtils]: 58 out of 66 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a69d28c5-f5e7-40a5-9fe5-c41b21d35bb1/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:44:50,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:44:50,873 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-11-29 19:44:50,874 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:44:50,874 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3 Supporting invariants [] [2020-11-29 19:44:51,027 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2020-11-29 19:44:51,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:44:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:51,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:44:51,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:44:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:51,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 19:44:51,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:44:51,119 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:44:51,127 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:44:51,274 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:44:51,274 INFO L384 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 49 treesize of output 66 [2020-11-29 19:44:51,278 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-29 19:44:51,280 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 19:44:51,283 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:44:51,363 INFO L625 ElimStorePlain]: treesize reduction 131, result has 22.0 percent of original size [2020-11-29 19:44:51,365 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:44:51,365 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:49, output treesize:37 [2020-11-29 19:44:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:51,407 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-11-29 19:44:51,409 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 102 transitions. cyclomatic complexity: 36 Second operand 7 states. [2020-11-29 19:44:51,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 102 transitions. cyclomatic complexity: 36. Second operand 7 states. Result 204 states and 297 transitions. Complement of second has 10 states. [2020-11-29 19:44:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-29 19:44:51,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 19:44:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2020-11-29 19:44:51,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 4 letters. Loop has 9 letters. [2020-11-29 19:44:51,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:51,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 13 letters. Loop has 9 letters. [2020-11-29 19:44:51,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:51,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 4 letters. Loop has 18 letters. [2020-11-29 19:44:51,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:44:51,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 297 transitions. [2020-11-29 19:44:51,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:51,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 54 states and 73 transitions. [2020-11-29 19:44:51,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 19:44:51,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 19:44:51,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 73 transitions. [2020-11-29 19:44:51,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:44:51,605 INFO L691 BuchiCegarLoop]: Abstraction has 54 states and 73 transitions. [2020-11-29 19:44:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 73 transitions. [2020-11-29 19:44:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-29 19:44:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-29 19:44:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2020-11-29 19:44:51,612 INFO L714 BuchiCegarLoop]: Abstraction has 54 states and 73 transitions. [2020-11-29 19:44:51,612 INFO L594 BuchiCegarLoop]: Abstraction has 54 states and 73 transitions. [2020-11-29 19:44:51,612 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 19:44:51,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 73 transitions. [2020-11-29 19:44:51,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:51,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:51,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:51,614 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:44:51,614 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:51,615 INFO L794 eck$LassoCheckResult]: Stem: 1105#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1103#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 1104#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 1132#L555-1 assume !test_fun_#t~short8; 1106#L555-3 [2020-11-29 19:44:51,615 INFO L796 eck$LassoCheckResult]: Loop: 1106#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 1107#L555-4 assume !test_fun_#t~short13;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short12 := test_fun_#t~mem9 < 0; 1110#L555-6 assume test_fun_#t~short12;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short12 := test_fun_#t~mem11 > -2147483648 - test_fun_#t~mem10; 1080#L555-8 test_fun_#t~short13 := test_fun_#t~short12; 1081#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 1088#L555-10 assume !test_fun_#t~short16; 1095#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1090#L556 assume !(test_fun_#t~mem17 > test_fun_#t~mem18);havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem20 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem21 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1091#L559 assume test_fun_#t~mem20 == test_fun_#t~mem21;havoc test_fun_#t~mem21;havoc test_fun_#t~mem20;call test_fun_#t~mem22 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem22 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem22; 1084#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 1085#L555-1 assume !test_fun_#t~short8; 1106#L555-3 [2020-11-29 19:44:51,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:51,616 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2020-11-29 19:44:51,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:51,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459303488] [2020-11-29 19:44:51,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:51,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:51,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:51,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:51,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1675651104, now seen corresponding path program 1 times [2020-11-29 19:44:51,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:51,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676015836] [2020-11-29 19:44:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:51,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676015836] [2020-11-29 19:44:51,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:51,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:44:51,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233195168] [2020-11-29 19:44:51,698 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:51,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:51,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:44:51,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:44:51,699 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. cyclomatic complexity: 23 Second operand 3 states. [2020-11-29 19:44:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:51,737 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2020-11-29 19:44:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:44:51,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 73 transitions. [2020-11-29 19:44:51,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:51,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 54 states and 69 transitions. [2020-11-29 19:44:51,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 19:44:51,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 19:44:51,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 69 transitions. [2020-11-29 19:44:51,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:44:51,741 INFO L691 BuchiCegarLoop]: Abstraction has 54 states and 69 transitions. [2020-11-29 19:44:51,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 69 transitions. [2020-11-29 19:44:51,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-29 19:44:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-29 19:44:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2020-11-29 19:44:51,745 INFO L714 BuchiCegarLoop]: Abstraction has 54 states and 69 transitions. [2020-11-29 19:44:51,745 INFO L594 BuchiCegarLoop]: Abstraction has 54 states and 69 transitions. [2020-11-29 19:44:51,745 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 19:44:51,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 69 transitions. [2020-11-29 19:44:51,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:51,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:51,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:51,747 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:44:51,747 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:51,747 INFO L794 eck$LassoCheckResult]: Stem: 1223#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1222#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 1202#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 1203#L555-1 assume !test_fun_#t~short8; 1224#L555-3 [2020-11-29 19:44:51,754 INFO L796 eck$LassoCheckResult]: Loop: 1224#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 1225#L555-4 assume !test_fun_#t~short13;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short12 := test_fun_#t~mem9 < 0; 1228#L555-6 assume test_fun_#t~short12;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short12 := test_fun_#t~mem11 > -2147483648 - test_fun_#t~mem10; 1198#L555-8 test_fun_#t~short13 := test_fun_#t~short12; 1199#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 1207#L555-10 assume test_fun_#t~short16;call test_fun_#t~mem14 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem15 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short16 := test_fun_#t~mem14 + test_fun_#t~mem15 > 0; 1214#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1209#L556 assume !(test_fun_#t~mem17 > test_fun_#t~mem18);havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem20 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem21 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1210#L559 assume test_fun_#t~mem20 == test_fun_#t~mem21;havoc test_fun_#t~mem21;havoc test_fun_#t~mem20;call test_fun_#t~mem22 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem22 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem22; 1231#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 1234#L555-1 assume !test_fun_#t~short8; 1224#L555-3 [2020-11-29 19:44:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:51,757 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 3 times [2020-11-29 19:44:51,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:51,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150126595] [2020-11-29 19:44:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:51,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:51,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:51,810 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:51,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1732909406, now seen corresponding path program 1 times [2020-11-29 19:44:51,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:51,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766293136] [2020-11-29 19:44:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:52,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766293136] [2020-11-29 19:44:52,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:52,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 19:44:52,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900949752] [2020-11-29 19:44:52,015 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:52,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:52,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:44:52,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:44:52,016 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. cyclomatic complexity: 19 Second operand 7 states. [2020-11-29 19:44:52,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:52,207 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2020-11-29 19:44:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:44:52,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 93 transitions. [2020-11-29 19:44:52,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:52,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 86 transitions. [2020-11-29 19:44:52,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 19:44:52,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 19:44:52,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 86 transitions. [2020-11-29 19:44:52,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:44:52,210 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 86 transitions. [2020-11-29 19:44:52,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 86 transitions. [2020-11-29 19:44:52,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 19:44:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 19:44:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2020-11-29 19:44:52,214 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 86 transitions. [2020-11-29 19:44:52,214 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 86 transitions. [2020-11-29 19:44:52,214 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 19:44:52,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 86 transitions. [2020-11-29 19:44:52,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 19:44:52,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:44:52,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:44:52,215 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 19:44:52,216 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:44:52,216 INFO L794 eck$LassoCheckResult]: Stem: 1367#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1365#L-1 havoc main_#res;havoc main_#t~nondet25, main_#t~nondet26, main_#t~ret27;test_fun_#in~x, test_fun_#in~y := main_#t~nondet25, main_#t~nondet26;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem17, test_fun_#t~mem18, test_fun_#t~mem19, test_fun_#t~mem20, test_fun_#t~mem21, test_fun_#t~mem22, test_fun_#t~mem23, test_fun_#t~mem5, test_fun_#t~mem7, test_fun_#t~mem6, test_fun_#t~short8, test_fun_#t~mem9, test_fun_#t~mem11, test_fun_#t~mem10, test_fun_#t~short12, test_fun_#t~short13, test_fun_#t~mem14, test_fun_#t~mem15, test_fun_#t~short16, test_fun_#t~mem24, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 1366#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 1402#L555-1 assume !test_fun_#t~short8; 1368#L555-3 [2020-11-29 19:44:52,216 INFO L796 eck$LassoCheckResult]: Loop: 1368#L555-3 test_fun_#t~short13 := test_fun_#t~short8; 1369#L555-4 assume !test_fun_#t~short13;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short12 := test_fun_#t~mem9 < 0; 1371#L555-6 assume !test_fun_#t~short12; 1346#L555-8 test_fun_#t~short13 := test_fun_#t~short12; 1347#L555-9 test_fun_#t~short16 := test_fun_#t~short13; 1354#L555-10 assume test_fun_#t~short16;call test_fun_#t~mem14 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem15 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short16 := test_fun_#t~mem14 + test_fun_#t~mem15 > 0; 1360#L555-12 assume !!test_fun_#t~short16;havoc test_fun_#t~short12;havoc test_fun_#t~mem11;havoc test_fun_#t~short8;havoc test_fun_#t~short13;havoc test_fun_#t~short16;havoc test_fun_#t~mem7;havoc test_fun_#t~mem10;havoc test_fun_#t~mem15;havoc test_fun_#t~mem14;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem9;call test_fun_#t~mem17 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem18 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1356#L556 assume !(test_fun_#t~mem17 > test_fun_#t~mem18);havoc test_fun_#t~mem17;havoc test_fun_#t~mem18;call test_fun_#t~mem20 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem21 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1357#L559 assume test_fun_#t~mem20 == test_fun_#t~mem21;havoc test_fun_#t~mem21;havoc test_fun_#t~mem20;call test_fun_#t~mem22 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem22 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem22; 1350#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 >= 0; 1351#L555-1 assume !test_fun_#t~short8; 1368#L555-3 [2020-11-29 19:44:52,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:52,217 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 4 times [2020-11-29 19:44:52,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:52,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760383470] [2020-11-29 19:44:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:52,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:44:52,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:44:52,242 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:52,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:44:52,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1052851036, now seen corresponding path program 1 times [2020-11-29 19:44:52,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:44:52,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781225351] [2020-11-29 19:44:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:44:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:44:52,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:44:52,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781225351] [2020-11-29 19:44:52,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:44:52,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:44:52,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477182568] [2020-11-29 19:44:52,271 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:44:52,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:44:52,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:44:52,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:44:52,272 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. cyclomatic complexity: 19 Second operand 5 states. [2020-11-29 19:44:52,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:44:52,328 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-11-29 19:44:52,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:44:52,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 62 transitions. [2020-11-29 19:44:52,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:44:52,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2020-11-29 19:44:52,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:44:52,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:44:52,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:44:52,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:44:52,330 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:44:52,330 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:44:52,330 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:44:52,330 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 19:44:52,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:44:52,330 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:44:52,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:44:52,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:44:52 BoogieIcfgContainer [2020-11-29 19:44:52,336 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:44:52,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:44:52,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:44:52,336 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:44:52,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:44:34" (3/4) ... [2020-11-29 19:44:52,339 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:44:52,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:44:52,341 INFO L168 Benchmark]: Toolchain (without parser) took 19096.43 ms. Allocated memory was 90.2 MB in the beginning and 237.0 MB in the end (delta: 146.8 MB). Free memory was 55.0 MB in the beginning and 175.0 MB in the end (delta: -120.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,342 INFO L168 Benchmark]: CDTParser took 9.88 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 72.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.21 ms. Allocated memory is still 90.2 MB. Free memory was 54.7 MB in the beginning and 57.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.09 ms. Allocated memory is still 90.2 MB. Free memory was 57.3 MB in the beginning and 55.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:44:52,343 INFO L168 Benchmark]: Boogie Preprocessor took 57.41 ms. Allocated memory is still 90.2 MB. Free memory was 55.6 MB in the beginning and 54.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,344 INFO L168 Benchmark]: RCFGBuilder took 737.38 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 35.6 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,345 INFO L168 Benchmark]: BuchiAutomizer took 17651.32 ms. Allocated memory was 90.2 MB in the beginning and 237.0 MB in the end (delta: 146.8 MB). Free memory was 35.6 MB in the beginning and 176.1 MB in the end (delta: -140.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,345 INFO L168 Benchmark]: Witness Printer took 3.68 ms. Allocated memory is still 237.0 MB. Free memory was 176.1 MB in the beginning and 175.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:44:52,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 9.88 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 72.0 MB in the end (delta: -10.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 553.21 ms. Allocated memory is still 90.2 MB. Free memory was 54.7 MB in the beginning and 57.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.09 ms. Allocated memory is still 90.2 MB. Free memory was 57.3 MB in the beginning and 55.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.41 ms. Allocated memory is still 90.2 MB. Free memory was 55.6 MB in the beginning and 54.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 737.38 ms. Allocated memory is still 90.2 MB. Free memory was 54.0 MB in the beginning and 35.6 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17651.32 ms. Allocated memory was 90.2 MB in the beginning and 237.0 MB in the end (delta: 146.8 MB). Free memory was 35.6 MB in the beginning and 176.1 MB in the end (delta: -140.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.68 ms. Allocated memory is still 237.0 MB. Free memory was 176.1 MB in the beginning and 175.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (5 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 6 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.5s and 9 iterations. TraceHistogramMax:1. Analysis of lassos took 15.1s. Construction of modules took 0.4s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 71 states and ocurred in iteration 7. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 132 SDtfs, 82 SDslu, 179 SDs, 0 SdLazy, 214 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital318 mio100 ax105 hnf99 lsp94 ukn80 mio100 lsp30 div100 bol107 ite100 ukn100 eq162 hnf90 smp92 dnf263 smp65 tf100 neg99 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 181ms VariablesStem: 10 VariablesLoop: 7 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...