./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/Primes.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Primes.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82151ec4435da78821025b3100fe51201edc8f02 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:37:10,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:37:10,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:37:10,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:37:10,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:37:10,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:37:10,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:37:10,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:37:10,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:37:10,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:37:10,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:37:10,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:37:10,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:37:10,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:37:10,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:37:10,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:37:10,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:37:10,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:37:10,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:37:10,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:37:10,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:37:10,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:37:10,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:37:10,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:37:10,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:37:10,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:37:10,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:37:10,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:37:10,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:37:10,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:37:10,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:37:10,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:37:10,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:37:10,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:37:10,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:37:10,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:37:10,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:37:10,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:37:10,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:37:10,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:37:10,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:37:10,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 10:37:10,890 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:37:10,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:37:10,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:37:10,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:37:10,902 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:37:10,903 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:37:10,903 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:37:10,903 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:37:10,903 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:37:10,903 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:37:10,904 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:37:10,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:37:10,904 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:37:10,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:37:10,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:37:10,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:37:10,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:37:10,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:37:10,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:37:10,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:37:10,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:37:10,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:37:10,907 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:37:10,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:37:10,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:37:10,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:37:10,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:37:10,908 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:37:10,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:37:10,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:37:10,909 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:37:10,910 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:37:10,910 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82151ec4435da78821025b3100fe51201edc8f02 [2019-11-20 10:37:11,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:37:11,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:37:11,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:37:11,096 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:37:11,096 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:37:11,097 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/../../sv-benchmarks/c/recursive/Primes.c [2019-11-20 10:37:11,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/data/527ad8823/2c05de753b8e4d4ab7db5ec96fcb8103/FLAGc9e75af72 [2019-11-20 10:37:11,520 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:37:11,520 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/sv-benchmarks/c/recursive/Primes.c [2019-11-20 10:37:11,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/data/527ad8823/2c05de753b8e4d4ab7db5ec96fcb8103/FLAGc9e75af72 [2019-11-20 10:37:11,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/data/527ad8823/2c05de753b8e4d4ab7db5ec96fcb8103 [2019-11-20 10:37:11,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:37:11,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:37:11,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:37:11,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:37:11,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:37:11,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:11" (1/1) ... [2019-11-20 10:37:11,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314bd9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:11, skipping insertion in model container [2019-11-20 10:37:11,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:37:11" (1/1) ... [2019-11-20 10:37:11,975 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:37:11,992 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:37:12,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:37:12,136 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:37:12,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:37:12,244 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:37:12,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12 WrapperNode [2019-11-20 10:37:12,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:37:12,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:37:12,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:37:12,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:37:12,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:37:12,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:37:12,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:37:12,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:37:12,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... [2019-11-20 10:37:12,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:37:12,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:37:12,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:37:12,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:37:12,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2019-11-20 10:37:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2019-11-20 10:37:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2019-11-20 10:37:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2019-11-20 10:37:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:37:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:37:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2019-11-20 10:37:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2019-11-20 10:37:12,680 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:37:12,680 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:37:12,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:12 BoogieIcfgContainer [2019-11-20 10:37:12,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:37:12,682 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:37:12,682 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:37:12,686 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:37:12,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:37:12,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:37:11" (1/3) ... [2019-11-20 10:37:12,689 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f1119f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:37:12, skipping insertion in model container [2019-11-20 10:37:12,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:37:12,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:37:12" (2/3) ... [2019-11-20 10:37:12,690 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f1119f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:37:12, skipping insertion in model container [2019-11-20 10:37:12,690 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:37:12,690 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:12" (3/3) ... [2019-11-20 10:37:12,691 INFO L371 chiAutomizerObserver]: Analyzing ICFG Primes.c [2019-11-20 10:37:12,736 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:37:12,736 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:37:12,737 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:37:12,737 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:37:12,737 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:37:12,737 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:37:12,737 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:37:12,737 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:37:12,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states. [2019-11-20 10:37:12,780 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-20 10:37:12,780 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:12,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:12,789 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 10:37:12,789 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:12,789 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:37:12,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states. [2019-11-20 10:37:12,794 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-20 10:37:12,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:12,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:12,795 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 10:37:12,795 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:12,803 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 13#L76true assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 10#L51true call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 12#is_prime_ENTRYtrue [2019-11-20 10:37:12,804 INFO L796 eck$LassoCheckResult]: Loop: 12#is_prime_ENTRYtrue ~n := #in~n;~m := #in~m; 41#L56true assume !(~n <= 1); 35#L59true assume !(2 == ~n); 25#L62true assume ~n > 2; 39#L63true assume !(~m <= 1); 32#L66true call #t~ret6 := multiple_of(~n, ~m);< 51#multiple_ofENTRYtrue ~n := #in~n;~m := #in~m; 31#L30true assume !(~m < 0); 24#L33true assume !(~n < 0); 37#L36true assume 0 == ~m;#res := 0; 27#multiple_ofFINALtrue assume true; 46#multiple_ofEXITtrue >#121#return; 30#L66-1true assume !(0 == #t~ret6);havoc #t~ret6; 23#L69true call #t~ret7 := is_prime_(~n, ~m - 1);< 12#is_prime_ENTRYtrue [2019-11-20 10:37:12,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:12,810 INFO L82 PathProgramCache]: Analyzing trace with hash 72718, now seen corresponding path program 1 times [2019-11-20 10:37:12,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:12,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525794860] [2019-11-20 10:37:12,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:12,921 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:12,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:12,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1613119264, now seen corresponding path program 1 times [2019-11-20 10:37:12,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:12,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114152869] [2019-11-20 10:37:12,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:13,052 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114152869] [2019-11-20 10:37:13,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:37:13,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:37:13,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239606671] [2019-11-20 10:37:13,061 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 10:37:13,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:13,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:37:13,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:37:13,079 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 5 states. [2019-11-20 10:37:13,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:13,188 INFO L93 Difference]: Finished difference Result 55 states and 79 transitions. [2019-11-20 10:37:13,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:37:13,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 79 transitions. [2019-11-20 10:37:13,196 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-20 10:37:13,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 40 states and 53 transitions. [2019-11-20 10:37:13,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2019-11-20 10:37:13,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2019-11-20 10:37:13,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 53 transitions. [2019-11-20 10:37:13,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:37:13,207 INFO L688 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2019-11-20 10:37:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 53 transitions. [2019-11-20 10:37:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2019-11-20 10:37:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-20 10:37:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2019-11-20 10:37:13,253 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 50 transitions. [2019-11-20 10:37:13,253 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 50 transitions. [2019-11-20 10:37:13,254 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:37:13,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 50 transitions. [2019-11-20 10:37:13,257 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-20 10:37:13,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:13,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:13,258 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 10:37:13,258 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:13,258 INFO L794 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 149#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 138#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 146#is_prime_ENTRY [2019-11-20 10:37:13,258 INFO L796 eck$LassoCheckResult]: Loop: 146#is_prime_ENTRY ~n := #in~n;~m := #in~m; 147#L56 assume !(~n <= 1); 137#L59 assume !(2 == ~n); 141#L62 assume ~n > 2; 148#L63 assume !(~m <= 1); 124#L66 call #t~ret6 := multiple_of(~n, ~m);< 134#multiple_ofENTRY ~n := #in~n;~m := #in~m; 159#L30 assume !(~m < 0); 155#L33 assume !(~n < 0); 144#L36 assume !(0 == ~m); 145#L39 assume 0 == ~n;#res := 1; 128#multiple_ofFINAL assume true; 156#multiple_ofEXIT >#121#return; 157#L66-1 assume !(0 == #t~ret6);havoc #t~ret6; 139#L69 call #t~ret7 := is_prime_(~n, ~m - 1);< 146#is_prime_ENTRY [2019-11-20 10:37:13,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:13,259 INFO L82 PathProgramCache]: Analyzing trace with hash 72718, now seen corresponding path program 2 times [2019-11-20 10:37:13,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:13,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404350291] [2019-11-20 10:37:13,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:13,272 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:13,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:13,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1554944608, now seen corresponding path program 1 times [2019-11-20 10:37:13,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:13,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971400076] [2019-11-20 10:37:13,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:13,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971400076] [2019-11-20 10:37:13,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:37:13,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:37:13,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482468177] [2019-11-20 10:37:13,323 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 10:37:13,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:13,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:37:13,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:37:13,323 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-11-20 10:37:13,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:13,509 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2019-11-20 10:37:13,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:37:13,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2019-11-20 10:37:13,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-20 10:37:13,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 56 transitions. [2019-11-20 10:37:13,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-11-20 10:37:13,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-11-20 10:37:13,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 56 transitions. [2019-11-20 10:37:13,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:37:13,519 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-20 10:37:13,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 56 transitions. [2019-11-20 10:37:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-11-20 10:37:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 10:37:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2019-11-20 10:37:13,529 INFO L711 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2019-11-20 10:37:13,529 INFO L591 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2019-11-20 10:37:13,529 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 10:37:13,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 53 transitions. [2019-11-20 10:37:13,533 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-20 10:37:13,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:13,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:13,534 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 10:37:13,534 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:13,535 INFO L794 eck$LassoCheckResult]: Stem: 255#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 246#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 235#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 243#is_prime_ENTRY [2019-11-20 10:37:13,535 INFO L796 eck$LassoCheckResult]: Loop: 243#is_prime_ENTRY ~n := #in~n;~m := #in~m; 244#L56 assume !(~n <= 1); 234#L59 assume !(2 == ~n); 238#L62 assume ~n > 2; 245#L63 assume !(~m <= 1); 223#L66 call #t~ret6 := multiple_of(~n, ~m);< 231#multiple_ofENTRY ~n := #in~n;~m := #in~m; 257#L30 assume !(~m < 0); 253#L33 assume !(~n < 0); 241#L36 assume !(0 == ~m); 242#L39 assume !(0 == ~n); 224#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 231#multiple_ofENTRY ~n := #in~n;~m := #in~m; 257#L30 assume !(~m < 0); 253#L33 assume !(~n < 0); 241#L36 assume !(0 == ~m); 242#L39 assume 0 == ~n;#res := 1; 225#multiple_ofFINAL assume true; 254#multiple_ofEXIT >#111#return; 247#L42-1 #res := #t~ret4;havoc #t~ret4; 248#multiple_ofFINAL assume true; 259#multiple_ofEXIT >#121#return; 256#L66-1 assume !(0 == #t~ret6);havoc #t~ret6; 236#L69 call #t~ret7 := is_prime_(~n, ~m - 1);< 243#is_prime_ENTRY [2019-11-20 10:37:13,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:13,535 INFO L82 PathProgramCache]: Analyzing trace with hash 72718, now seen corresponding path program 3 times [2019-11-20 10:37:13,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:13,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595872480] [2019-11-20 10:37:13,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:13,545 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:13,546 INFO L82 PathProgramCache]: Analyzing trace with hash 326750000, now seen corresponding path program 1 times [2019-11-20 10:37:13,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:13,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882308763] [2019-11-20 10:37:13,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:13,576 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:13,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1599788093, now seen corresponding path program 1 times [2019-11-20 10:37:13,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:13,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932609531] [2019-11-20 10:37:13,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:37:13,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932609531] [2019-11-20 10:37:13,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400122836] [2019-11-20 10:37:13,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:37:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:13,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 10:37:13,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:37:13,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:37:13,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2019-11-20 10:37:13,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382863166] [2019-11-20 10:37:14,254 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:14,254 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:14,254 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:14,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:14,255 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:14,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:14,255 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:14,255 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration3_Loop [2019-11-20 10:37:14,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:14,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:14,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,381 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:14,381 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:14,396 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:14,397 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,405 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:14,405 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {is_prime__~n=0} Honda state: {is_prime__~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:14,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:14,423 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,428 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:14,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {is_prime__~m=0} Honda state: {is_prime__~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:14,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:14,447 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:14,461 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {is_prime__#t~ret6=0} Honda state: {is_prime__#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:14,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:14,489 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,495 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:14,495 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {is_prime__#t~ret7=0} Honda state: {is_prime__#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:14,517 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:14,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:14,613 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:14,615 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:14,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:14,616 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:14,616 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:14,616 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:14,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:14,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:14,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration3_Loop [2019-11-20 10:37:14,617 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:14,617 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:14,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:14,717 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:14,721 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/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) [2019-11-20 10:37:14,739 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 [2019-11-20 10:37:14,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:14,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:14,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:14,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:14,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:14,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:14,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:14,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:14,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:14,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:14,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:14,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:14,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:14,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:14,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:14,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:14,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:14,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:14,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:14,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:14,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:14,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:14,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:14,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:14,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:14,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:14,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:14,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:14,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:14,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:14,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:14,834 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:37:14,834 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:14,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:14,855 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:14,855 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:14,856 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(is_prime__#in~m) = 1*is_prime__#in~m Supporting invariants [] [2019-11-20 10:37:14,860 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:14,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:37:14,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:14,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 10:37:14,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:37:15,138 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2019-11-20 10:37:15,139 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 16 Second operand 10 states. [2019-11-20 10:37:15,626 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 16. Second operand 10 states. Result 174 states and 238 transitions. Complement of second has 40 states. [2019-11-20 10:37:15,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 10:37:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 44 transitions. [2019-11-20 10:37:15,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 3 letters. Loop has 24 letters. [2019-11-20 10:37:15,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:15,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 27 letters. Loop has 24 letters. [2019-11-20 10:37:15,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:15,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 3 letters. Loop has 48 letters. [2019-11-20 10:37:15,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:15,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 238 transitions. [2019-11-20 10:37:15,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2019-11-20 10:37:15,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 150 states and 200 transitions. [2019-11-20 10:37:15,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2019-11-20 10:37:15,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2019-11-20 10:37:15,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 200 transitions. [2019-11-20 10:37:15,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:15,665 INFO L688 BuchiCegarLoop]: Abstraction has 150 states and 200 transitions. [2019-11-20 10:37:15,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 200 transitions. [2019-11-20 10:37:15,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 107. [2019-11-20 10:37:15,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 10:37:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 138 transitions. [2019-11-20 10:37:15,691 INFO L711 BuchiCegarLoop]: Abstraction has 107 states and 138 transitions. [2019-11-20 10:37:15,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:15,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 10:37:15,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-20 10:37:15,692 INFO L87 Difference]: Start difference. First operand 107 states and 138 transitions. Second operand 10 states. [2019-11-20 10:37:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:15,959 INFO L93 Difference]: Finished difference Result 145 states and 192 transitions. [2019-11-20 10:37:15,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 10:37:15,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 192 transitions. [2019-11-20 10:37:15,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2019-11-20 10:37:15,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 139 states and 184 transitions. [2019-11-20 10:37:15,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2019-11-20 10:37:15,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2019-11-20 10:37:15,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 184 transitions. [2019-11-20 10:37:15,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:15,973 INFO L688 BuchiCegarLoop]: Abstraction has 139 states and 184 transitions. [2019-11-20 10:37:15,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 184 transitions. [2019-11-20 10:37:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 111. [2019-11-20 10:37:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-20 10:37:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2019-11-20 10:37:15,989 INFO L711 BuchiCegarLoop]: Abstraction has 111 states and 144 transitions. [2019-11-20 10:37:15,989 INFO L591 BuchiCegarLoop]: Abstraction has 111 states and 144 transitions. [2019-11-20 10:37:15,989 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 10:37:15,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 144 transitions. [2019-11-20 10:37:15,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2019-11-20 10:37:15,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:15,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:15,997 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:15,997 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:37:15,998 INFO L794 eck$LassoCheckResult]: Stem: 1023#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 1002#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 979#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 994#is_prime_ENTRY ~n := #in~n;~m := #in~m; 996#L56 assume !(~n <= 1); 978#L59 assume !(2 == ~n); 981#L62 assume ~n > 2; 999#L63 assume !(~m <= 1); 972#L66 call #t~ret6 := multiple_of(~n, ~m);< 1031#multiple_ofENTRY ~n := #in~n;~m := #in~m; 1059#L30 assume ~m < 0; 1006#L31 [2019-11-20 10:37:15,998 INFO L796 eck$LassoCheckResult]: Loop: 1006#L31 call #t~ret2 := multiple_of(~n, -~m);< 1010#multiple_ofENTRY ~n := #in~n;~m := #in~m; 1027#L30 assume ~m < 0; 1006#L31 [2019-11-20 10:37:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:15,999 INFO L82 PathProgramCache]: Analyzing trace with hash 313603312, now seen corresponding path program 1 times [2019-11-20 10:37:15,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:15,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424912624] [2019-11-20 10:37:16,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:16,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424912624] [2019-11-20 10:37:16,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:37:16,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 10:37:16,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206459732] [2019-11-20 10:37:16,045 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:37:16,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:16,046 INFO L82 PathProgramCache]: Analyzing trace with hash 131660, now seen corresponding path program 1 times [2019-11-20 10:37:16,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:16,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776207915] [2019-11-20 10:37:16,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:16,052 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:16,105 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:16,105 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:16,105 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:16,105 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:16,106 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:16,106 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:16,106 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:16,106 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:16,106 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration4_Loop [2019-11-20 10:37:16,106 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:16,106 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:16,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:16,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:16,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:16,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:16,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:16,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:16,173 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:16,173 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:16,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:16,183 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:16,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:16,192 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_#t~ret4=0} Honda state: {multiple_of_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/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) [2019-11-20 10:37:16,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:16,203 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:16,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:16,209 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_~n=0, multiple_of_#in~n=0} Honda state: {multiple_of_~n=0, multiple_of_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/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) [2019-11-20 10:37:16,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:16,220 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:16,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:16,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_#t~ret2=0} Honda state: {multiple_of_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:16,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:16,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:16,243 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:16,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_#t~ret3=0} Honda state: {multiple_of_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:16,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:16,259 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:16,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:16,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:17,743 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:17,745 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:17,745 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:17,745 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:17,745 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:17,745 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:17,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:17,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:17,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration4_Loop [2019-11-20 10:37:17,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:17,745 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:17,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:17,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:17,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:17,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:17,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:17,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:17,832 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:17,832 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:17,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:17,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:17,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:17,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:17,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:17,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:17,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:17,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/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) [2019-11-20 10:37:17,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:17,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:17,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:17,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:17,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:17,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:17,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:17,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:17,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:17,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:17,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:17,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:17,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:17,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:17,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:17,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:17,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:17,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:17,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:17,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:17,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:17,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:17,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:17,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:17,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:17,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:17,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:17,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:17,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:17,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:17,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:17,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:17,913 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 10:37:17,913 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:17,917 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:17,917 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:17,917 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:17,917 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_~m) = 1*multiple_of_~m Supporting invariants [] [2019-11-20 10:37:17,919 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:37:17,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:17,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:37:17,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:17,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 10:37:17,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:17,996 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 10:37:17,996 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 144 transitions. cyclomatic complexity: 37 Second operand 4 states. [2019-11-20 10:37:18,081 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 144 transitions. cyclomatic complexity: 37. Second operand 4 states. Result 209 states and 271 transitions. Complement of second has 18 states. [2019-11-20 10:37:18,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 10:37:18,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2019-11-20 10:37:18,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 66 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-20 10:37:18,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:18,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 66 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-20 10:37:18,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:18,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 66 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-20 10:37:18,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:18,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 271 transitions. [2019-11-20 10:37:18,096 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 34 [2019-11-20 10:37:18,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 155 states and 200 transitions. [2019-11-20 10:37:18,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2019-11-20 10:37:18,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2019-11-20 10:37:18,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 200 transitions. [2019-11-20 10:37:18,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:18,101 INFO L688 BuchiCegarLoop]: Abstraction has 155 states and 200 transitions. [2019-11-20 10:37:18,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 200 transitions. [2019-11-20 10:37:18,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 126. [2019-11-20 10:37:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-20 10:37:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2019-11-20 10:37:18,118 INFO L711 BuchiCegarLoop]: Abstraction has 126 states and 164 transitions. [2019-11-20 10:37:18,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:18,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:37:18,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:37:18,119 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand 5 states. [2019-11-20 10:37:18,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:18,166 INFO L93 Difference]: Finished difference Result 114 states and 144 transitions. [2019-11-20 10:37:18,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:37:18,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 144 transitions. [2019-11-20 10:37:18,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-20 10:37:18,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 114 states and 144 transitions. [2019-11-20 10:37:18,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2019-11-20 10:37:18,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2019-11-20 10:37:18,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 144 transitions. [2019-11-20 10:37:18,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:18,176 INFO L688 BuchiCegarLoop]: Abstraction has 114 states and 144 transitions. [2019-11-20 10:37:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 144 transitions. [2019-11-20 10:37:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2019-11-20 10:37:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-20 10:37:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2019-11-20 10:37:18,184 INFO L711 BuchiCegarLoop]: Abstraction has 110 states and 140 transitions. [2019-11-20 10:37:18,184 INFO L591 BuchiCegarLoop]: Abstraction has 110 states and 140 transitions. [2019-11-20 10:37:18,184 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 10:37:18,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 140 transitions. [2019-11-20 10:37:18,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-20 10:37:18,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:18,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:18,187 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:18,187 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:37:18,187 INFO L794 eck$LassoCheckResult]: Stem: 1660#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 1642#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 1626#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 1634#is_prime_ENTRY ~n := #in~n;~m := #in~m; 1636#L56 assume ~n <= 1;#res := 0; 1707#is_prime_FINAL assume true; 1668#is_prime_EXIT >#117#return; 1629#L51-1 is_prime_#res := is_prime_#t~ret5;havoc is_prime_#t~ret5; 1619#L51-2 main_#t~ret9 := is_prime_#res;main_~result~0 := main_#t~ret9;havoc main_#t~ret9;main_~f1~0 := main_#t~nondet10;havoc main_#t~nondet10; 1620#L83 assume !(main_~f1~0 < 1 || main_~f1~0 > 46340);main_~f2~0 := main_#t~nondet11;havoc main_#t~nondet11; 1652#L89 assume !(main_~f2~0 < 1 || main_~f2~0 > 46340);main_#t~short13 := 1 == main_~result~0; 1653#L95 assume main_#t~short13; 1612#L95-1 call main_#t~ret12 := mult(main_~f1~0, main_~f2~0);< 1628#multENTRY [2019-11-20 10:37:18,187 INFO L796 eck$LassoCheckResult]: Loop: 1628#multENTRY ~n := #in~n;~m := #in~m; 1610#L16 assume ~m < 0; 1613#L17 call #t~ret0 := mult(~n, -~m);< 1628#multENTRY [2019-11-20 10:37:18,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:18,188 INFO L82 PathProgramCache]: Analyzing trace with hash -312507047, now seen corresponding path program 1 times [2019-11-20 10:37:18,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:18,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048990595] [2019-11-20 10:37:18,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:18,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:18,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048990595] [2019-11-20 10:37:18,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:37:18,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 10:37:18,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663249800] [2019-11-20 10:37:18,265 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:37:18,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:18,265 INFO L82 PathProgramCache]: Analyzing trace with hash 53804, now seen corresponding path program 1 times [2019-11-20 10:37:18,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:18,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702756900] [2019-11-20 10:37:18,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:18,270 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:18,314 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:18,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:18,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:18,315 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:18,315 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:18,315 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,315 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:18,315 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:18,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration5_Loop [2019-11-20 10:37:18,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:18,315 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:18,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,377 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:18,377 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:18,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:18,403 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:18,410 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:18,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:18,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,431 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:18,431 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:18,435 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:18,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:18,452 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:18,453 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:18,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:18,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:18,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:18,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:18,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:18,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:18,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration5_Loop [2019-11-20 10:37:18,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:18,454 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:18,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:18,518 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:18,518 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:18,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/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) [2019-11-20 10:37:18,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:18,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:18,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:18,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:18,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:18,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:18,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:18,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:18,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:18,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:18,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:18,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:18,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:18,601 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 10:37:18,601 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:18,605 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:18,605 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:18,605 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:18,605 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2019-11-20 10:37:18,606 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:37:18,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:18,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:37:18,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:18,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 10:37:18,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:18,706 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 10:37:18,706 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 140 transitions. cyclomatic complexity: 34 Second operand 5 states. [2019-11-20 10:37:18,838 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 110 states and 140 transitions. cyclomatic complexity: 34. Second operand 5 states. Result 142 states and 176 transitions. Complement of second has 14 states. [2019-11-20 10:37:18,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:18,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 10:37:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2019-11-20 10:37:18,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-20 10:37:18,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:18,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 3 letters. [2019-11-20 10:37:18,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:18,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 13 letters. Loop has 6 letters. [2019-11-20 10:37:18,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:18,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 176 transitions. [2019-11-20 10:37:18,844 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-20 10:37:18,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 134 states and 168 transitions. [2019-11-20 10:37:18,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2019-11-20 10:37:18,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 81 [2019-11-20 10:37:18,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 168 transitions. [2019-11-20 10:37:18,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:18,847 INFO L688 BuchiCegarLoop]: Abstraction has 134 states and 168 transitions. [2019-11-20 10:37:18,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 168 transitions. [2019-11-20 10:37:18,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 121. [2019-11-20 10:37:18,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-20 10:37:18,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2019-11-20 10:37:18,863 INFO L711 BuchiCegarLoop]: Abstraction has 121 states and 154 transitions. [2019-11-20 10:37:18,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:18,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:37:18,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:37:18,864 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand 7 states. [2019-11-20 10:37:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:18,927 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2019-11-20 10:37:18,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:37:18,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 163 transitions. [2019-11-20 10:37:18,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-20 10:37:18,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 122 states and 154 transitions. [2019-11-20 10:37:18,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-11-20 10:37:18,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-11-20 10:37:18,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 154 transitions. [2019-11-20 10:37:18,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:18,932 INFO L688 BuchiCegarLoop]: Abstraction has 122 states and 154 transitions. [2019-11-20 10:37:18,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 154 transitions. [2019-11-20 10:37:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2019-11-20 10:37:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-20 10:37:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2019-11-20 10:37:18,938 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 151 transitions. [2019-11-20 10:37:18,938 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 151 transitions. [2019-11-20 10:37:18,938 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 10:37:18,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 151 transitions. [2019-11-20 10:37:18,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-20 10:37:18,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:18,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:18,940 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:18,940 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 10:37:18,941 INFO L794 eck$LassoCheckResult]: Stem: 2269#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 2250#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 2229#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 2239#is_prime_ENTRY ~n := #in~n;~m := #in~m; 2241#L56 assume !(~n <= 1); 2284#L59 assume !(2 == ~n); 2285#L62 assume ~n > 2; 2246#L63 assume !(~m <= 1); 2214#L66 call #t~ret6 := multiple_of(~n, ~m);< 2276#multiple_ofENTRY ~n := #in~n;~m := #in~m; 2273#L30 assume !(~m < 0); 2261#L33 assume ~n < 0; 2201#L34 call #t~ret3 := multiple_of(-~n, ~m);< 2216#multiple_ofENTRY [2019-11-20 10:37:18,941 INFO L796 eck$LassoCheckResult]: Loop: 2216#multiple_ofENTRY ~n := #in~n;~m := #in~m; 2306#L30 assume !(~m < 0); 2305#L33 assume ~n < 0; 2202#L34 call #t~ret3 := multiple_of(-~n, ~m);< 2216#multiple_ofENTRY [2019-11-20 10:37:18,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:18,941 INFO L82 PathProgramCache]: Analyzing trace with hash 725075382, now seen corresponding path program 1 times [2019-11-20 10:37:18,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:18,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782959174] [2019-11-20 10:37:18,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:18,992 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782959174] [2019-11-20 10:37:18,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:37:18,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 10:37:18,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241816905] [2019-11-20 10:37:18,993 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:37:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:18,994 INFO L82 PathProgramCache]: Analyzing trace with hash 929674, now seen corresponding path program 1 times [2019-11-20 10:37:18,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:18,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758724647] [2019-11-20 10:37:18,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:18,999 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:19,052 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:19,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:19,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:19,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:19,053 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:19,053 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,053 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:19,053 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:19,053 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration6_Loop [2019-11-20 10:37:19,053 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:19,054 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:19,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,133 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:19,134 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:19,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:19,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:19,140 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_~n=0} Honda state: {multiple_of_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:19,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:19,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:19,147 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_#res=0} Honda state: {multiple_of_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:19,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:19,154 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:19,154 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_~m=0} Honda state: {multiple_of_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:19,158 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:19,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:19,182 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:19,184 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:19,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:19,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:19,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:19,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:19,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:19,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:19,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration6_Loop [2019-11-20 10:37:19,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:19,185 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:19,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,250 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:19,251 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:19,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:19,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:19,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:19,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:19,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:19,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:19,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:19,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:19,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:19,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:19,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:19,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:19,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:19,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:19,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:19,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:19,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:19,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:19,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:19,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:19,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:19,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:19,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:19,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:19,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:19,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:19,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:19,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:19,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:19,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:19,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:19,298 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:19,306 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 10:37:19,306 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:19,310 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:19,311 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:19,311 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:19,311 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_#in~n) = -1*multiple_of_#in~n Supporting invariants [] [2019-11-20 10:37:19,313 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:19,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 10:37:19,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:19,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 10:37:19,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:19,419 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 10:37:19,419 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 151 transitions. cyclomatic complexity: 36 Second operand 4 states. [2019-11-20 10:37:19,498 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 120 states and 151 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 270 states and 352 transitions. Complement of second has 13 states. [2019-11-20 10:37:19,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 10:37:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2019-11-20 10:37:19,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 13 letters. Loop has 4 letters. [2019-11-20 10:37:19,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:19,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 17 letters. Loop has 4 letters. [2019-11-20 10:37:19,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:19,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 13 letters. Loop has 8 letters. [2019-11-20 10:37:19,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:19,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 352 transitions. [2019-11-20 10:37:19,507 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 32 [2019-11-20 10:37:19,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 246 states and 328 transitions. [2019-11-20 10:37:19,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2019-11-20 10:37:19,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 132 [2019-11-20 10:37:19,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 328 transitions. [2019-11-20 10:37:19,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:19,513 INFO L688 BuchiCegarLoop]: Abstraction has 246 states and 328 transitions. [2019-11-20 10:37:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 328 transitions. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 10:37:19,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 216. [2019-11-20 10:37:19,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-11-20 10:37:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2019-11-20 10:37:19,552 INFO L711 BuchiCegarLoop]: Abstraction has 216 states and 283 transitions. [2019-11-20 10:37:19,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:19,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:37:19,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:37:19,553 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand 7 states. [2019-11-20 10:37:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:19,678 INFO L93 Difference]: Finished difference Result 220 states and 287 transitions. [2019-11-20 10:37:19,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:37:19,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 220 states and 287 transitions. [2019-11-20 10:37:19,682 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-20 10:37:19,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 220 states to 220 states and 287 transitions. [2019-11-20 10:37:19,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2019-11-20 10:37:19,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2019-11-20 10:37:19,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 287 transitions. [2019-11-20 10:37:19,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:19,687 INFO L688 BuchiCegarLoop]: Abstraction has 220 states and 287 transitions. [2019-11-20 10:37:19,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 287 transitions. [2019-11-20 10:37:19,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2019-11-20 10:37:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-11-20 10:37:19,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2019-11-20 10:37:19,701 INFO L711 BuchiCegarLoop]: Abstraction has 216 states and 282 transitions. [2019-11-20 10:37:19,701 INFO L591 BuchiCegarLoop]: Abstraction has 216 states and 282 transitions. [2019-11-20 10:37:19,701 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 10:37:19,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 216 states and 282 transitions. [2019-11-20 10:37:19,703 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-20 10:37:19,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:19,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:19,704 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:19,704 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:37:19,705 INFO L794 eck$LassoCheckResult]: Stem: 3207#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 3176#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 3163#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 3164#is_prime_ENTRY ~n := #in~n;~m := #in~m; 3166#L56 assume !(~n <= 1); 3270#L59 assume !(2 == ~n); 3269#L62 assume ~n > 2; 3266#L63 assume !(~m <= 1); 3239#L66 call #t~ret6 := multiple_of(~n, ~m);< 3261#multiple_ofENTRY ~n := #in~n;~m := #in~m; 3260#L30 assume !(~m < 0); 3259#L33 assume !(~n < 0); 3258#L36 assume !(0 == ~m); 3257#L39 assume !(0 == ~n); 3122#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 3237#multiple_ofENTRY [2019-11-20 10:37:19,705 INFO L796 eck$LassoCheckResult]: Loop: 3237#multiple_ofENTRY ~n := #in~n;~m := #in~m; 3235#L30 assume !(~m < 0); 3229#L33 assume !(~n < 0); 3230#L36 assume !(0 == ~m); 3255#L39 assume !(0 == ~n); 3121#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 3237#multiple_ofENTRY [2019-11-20 10:37:19,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:19,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1012741841, now seen corresponding path program 1 times [2019-11-20 10:37:19,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:19,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765363748] [2019-11-20 10:37:19,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:19,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:19,739 INFO L82 PathProgramCache]: Analyzing trace with hash 893418405, now seen corresponding path program 1 times [2019-11-20 10:37:19,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:19,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051269218] [2019-11-20 10:37:19,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:19,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:19,752 INFO L82 PathProgramCache]: Analyzing trace with hash -2089986443, now seen corresponding path program 2 times [2019-11-20 10:37:19,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:19,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658755351] [2019-11-20 10:37:19,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:19,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:19,849 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:19,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:19,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:19,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:19,850 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:19,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:19,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:19,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration7_Loop [2019-11-20 10:37:19,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:19,850 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:19,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:19,923 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:19,924 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:19,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:19,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:19,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_#res=0} Honda state: {multiple_of_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:19,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:19,934 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:19,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:19,950 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:20,070 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:20,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:20,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:20,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:20,071 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:20,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:20,071 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:20,071 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration7_Loop [2019-11-20 10:37:20,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:20,071 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:20,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,168 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:20,168 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:20,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:20,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:20,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:20,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:20,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:20,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:20,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:20,178 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:20,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:20,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:20,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:20,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:20,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:20,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:20,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:20,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:20,200 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:37:20,200 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:20,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:20,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:20,207 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:20,207 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_#in~n) = 1*multiple_of_#in~n Supporting invariants [] [2019-11-20 10:37:20,209 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:20,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 10:37:20,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:20,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 10:37:20,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:20,303 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 [2019-11-20 10:37:20,304 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 216 states and 282 transitions. cyclomatic complexity: 76 Second operand 6 states. [2019-11-20 10:37:20,434 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 216 states and 282 transitions. cyclomatic complexity: 76. Second operand 6 states. Result 315 states and 416 transitions. Complement of second has 21 states. [2019-11-20 10:37:20,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:20,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 10:37:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2019-11-20 10:37:20,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 42 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-20 10:37:20,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:20,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 42 transitions. Stem has 21 letters. Loop has 6 letters. [2019-11-20 10:37:20,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:20,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 42 transitions. Stem has 15 letters. Loop has 12 letters. [2019-11-20 10:37:20,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:20,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 416 transitions. [2019-11-20 10:37:20,441 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 32 [2019-11-20 10:37:20,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 284 states and 368 transitions. [2019-11-20 10:37:20,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 140 [2019-11-20 10:37:20,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2019-11-20 10:37:20,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 368 transitions. [2019-11-20 10:37:20,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:20,453 INFO L688 BuchiCegarLoop]: Abstraction has 284 states and 368 transitions. [2019-11-20 10:37:20,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 368 transitions. [2019-11-20 10:37:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 251. [2019-11-20 10:37:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-11-20 10:37:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 326 transitions. [2019-11-20 10:37:20,468 INFO L711 BuchiCegarLoop]: Abstraction has 251 states and 326 transitions. [2019-11-20 10:37:20,468 INFO L591 BuchiCegarLoop]: Abstraction has 251 states and 326 transitions. [2019-11-20 10:37:20,469 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 10:37:20,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 251 states and 326 transitions. [2019-11-20 10:37:20,471 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-20 10:37:20,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:20,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:20,471 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:20,472 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 10:37:20,472 INFO L794 eck$LassoCheckResult]: Stem: 3849#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 3814#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 3788#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 3803#is_prime_ENTRY ~n := #in~n;~m := #in~m; 3805#L56 assume !(~n <= 1); 3787#L59 assume 2 == ~n;#res := 1; 3789#is_prime_FINAL assume true; 3862#is_prime_EXIT >#117#return; 3798#L51-1 is_prime_#res := is_prime_#t~ret5;havoc is_prime_#t~ret5; 3785#L51-2 main_#t~ret9 := is_prime_#res;main_~result~0 := main_#t~ret9;havoc main_#t~ret9;main_~f1~0 := main_#t~nondet10;havoc main_#t~nondet10; 3786#L83 assume !(main_~f1~0 < 1 || main_~f1~0 > 46340);main_~f2~0 := main_#t~nondet11;havoc main_#t~nondet11; 3827#L89 assume !(main_~f2~0 < 1 || main_~f2~0 > 46340);main_#t~short13 := 1 == main_~result~0; 3828#L95 assume main_#t~short13; 3774#L95-1 call main_#t~ret12 := mult(main_~f1~0, main_~f2~0);< 3804#multENTRY ~n := #in~n;~m := #in~m; 3773#L16 assume !(~m < 0); 3776#L19 [2019-11-20 10:37:20,473 INFO L796 eck$LassoCheckResult]: Loop: 3776#L19 assume !(0 == ~m); 3820#L22 assume !(1 == ~m); 3795#L25 call #t~ret1 := mult(~n, ~m - 1);< 3797#multENTRY ~n := #in~n;~m := #in~m; 3833#L16 assume !(~m < 0); 3776#L19 [2019-11-20 10:37:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:20,473 INFO L82 PathProgramCache]: Analyzing trace with hash -53610220, now seen corresponding path program 1 times [2019-11-20 10:37:20,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:20,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556125590] [2019-11-20 10:37:20,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:20,515 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:20,515 INFO L82 PathProgramCache]: Analyzing trace with hash 61271251, now seen corresponding path program 1 times [2019-11-20 10:37:20,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:20,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517626198] [2019-11-20 10:37:20,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:20,519 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash 102279072, now seen corresponding path program 1 times [2019-11-20 10:37:20,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:20,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807983034] [2019-11-20 10:37:20,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:20,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:20,596 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:20,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:20,597 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:20,597 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:20,597 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:20,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,597 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:20,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:20,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration8_Loop [2019-11-20 10:37:20,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:20,597 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:20,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:20,653 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:20,653 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:20,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:20,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:20,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:20,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:20,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:20,666 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:20,670 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:20,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:20,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:21,662 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:21,664 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:21,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:21,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:21,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:21,664 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:21,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:21,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:21,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration8_Loop [2019-11-20 10:37:21,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:21,664 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:21,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:21,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:21,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:21,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:21,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:21,751 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:21,751 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:21,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:21,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:21,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:21,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:21,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:21,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:21,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:21,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:21,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:21,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:21,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:21,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:21,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:21,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:21,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:21,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:21,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:21,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:21,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:21,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:21,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:21,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:21,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:21,782 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:21,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:21,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:21,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:21,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:21,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:21,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:21,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:21,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:21,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:21,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:21,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:21,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:21,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:21,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:21,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:21,800 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:21,802 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 10:37:21,802 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:21,805 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:21,805 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:21,805 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:21,805 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2019-11-20 10:37:21,807 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:37:21,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:21,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:37:21,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:21,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 10:37:21,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:21,900 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 10:37:21,900 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 251 states and 326 transitions. cyclomatic complexity: 87 Second operand 6 states. [2019-11-20 10:37:21,982 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 251 states and 326 transitions. cyclomatic complexity: 87. Second operand 6 states. Result 275 states and 353 transitions. Complement of second has 17 states. [2019-11-20 10:37:21,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:21,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 10:37:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2019-11-20 10:37:21,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 16 letters. Loop has 5 letters. [2019-11-20 10:37:21,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:21,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 21 letters. Loop has 5 letters. [2019-11-20 10:37:21,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:21,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 16 letters. Loop has 10 letters. [2019-11-20 10:37:21,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:21,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 353 transitions. [2019-11-20 10:37:21,996 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-20 10:37:22,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 274 states and 352 transitions. [2019-11-20 10:37:22,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 132 [2019-11-20 10:37:22,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2019-11-20 10:37:22,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 274 states and 352 transitions. [2019-11-20 10:37:22,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:22,001 INFO L688 BuchiCegarLoop]: Abstraction has 274 states and 352 transitions. [2019-11-20 10:37:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states and 352 transitions. [2019-11-20 10:37:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 261. [2019-11-20 10:37:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-11-20 10:37:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 338 transitions. [2019-11-20 10:37:22,012 INFO L711 BuchiCegarLoop]: Abstraction has 261 states and 338 transitions. [2019-11-20 10:37:22,012 INFO L591 BuchiCegarLoop]: Abstraction has 261 states and 338 transitions. [2019-11-20 10:37:22,012 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-20 10:37:22,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 338 transitions. [2019-11-20 10:37:22,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-20 10:37:22,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:22,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:22,016 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:22,017 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:37:22,017 INFO L794 eck$LassoCheckResult]: Stem: 4481#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 4451#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 4438#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 4439#is_prime_ENTRY ~n := #in~n;~m := #in~m; 4441#L56 assume !(~n <= 1); 4495#L59 assume 2 == ~n;#res := 1; 4494#is_prime_FINAL assume true; 4492#is_prime_EXIT >#117#return; 4430#L51-1 is_prime_#res := is_prime_#t~ret5;havoc is_prime_#t~ret5; 4414#L51-2 main_#t~ret9 := is_prime_#res;main_~result~0 := main_#t~ret9;havoc main_#t~ret9;main_~f1~0 := main_#t~nondet10;havoc main_#t~nondet10; 4415#L83 assume !(main_~f1~0 < 1 || main_~f1~0 > 46340);main_~f2~0 := main_#t~nondet11;havoc main_#t~nondet11; 4470#L89 assume !(main_~f2~0 < 1 || main_~f2~0 > 46340);main_#t~short13 := 1 == main_~result~0; 4471#L95 assume main_#t~short13; 4403#L95-1 call main_#t~ret12 := mult(main_~f1~0, main_~f2~0);< 4440#multENTRY ~n := #in~n;~m := #in~m; 4402#L16 assume !(~m < 0); 4404#L19 assume !(0 == ~m); 4466#L22 assume !(1 == ~m); 4472#L25 call #t~ret1 := mult(~n, ~m - 1);< 4649#multENTRY ~n := #in~n;~m := #in~m; 4500#L16 assume ~m < 0; 4426#L17 [2019-11-20 10:37:22,017 INFO L796 eck$LassoCheckResult]: Loop: 4426#L17 call #t~ret0 := mult(~n, -~m);< 4427#multENTRY ~n := #in~n;~m := #in~m; 4501#L16 assume ~m < 0; 4426#L17 [2019-11-20 10:37:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash 102279069, now seen corresponding path program 1 times [2019-11-20 10:37:22,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:22,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869362584] [2019-11-20 10:37:22,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:22,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:22,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869362584] [2019-11-20 10:37:22,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:37:22,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:37:22,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034174317] [2019-11-20 10:37:22,099 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:37:22,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:22,100 INFO L82 PathProgramCache]: Analyzing trace with hash 138194, now seen corresponding path program 2 times [2019-11-20 10:37:22,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:22,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134066840] [2019-11-20 10:37:22,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:22,106 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:22,165 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:22,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:22,165 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:22,165 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:22,165 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:22,165 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:22,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:22,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:22,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration9_Loop [2019-11-20 10:37:22,166 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:22,166 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:22,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:22,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:22,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:22,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:22,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:22,234 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:22,234 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:22,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:22,247 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:22,250 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:22,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:22,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:22,256 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:22,261 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:22,261 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:22,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:22,270 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:22,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:22,278 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=4, mult_#in~n=4} Honda state: {mult_~n=4, mult_#in~n=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:22,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:22,285 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 10:37:22,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:22,298 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:22,999 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:23,000 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:23,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:23,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:23,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:23,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:23,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:23,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:23,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration9_Loop [2019-11-20 10:37:23,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:23,001 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:23,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,049 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:23,050 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:23,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:23,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:23,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:23,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:23,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:23,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:23,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:23,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:23,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:23,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:23,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:23,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:23,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:23,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:23,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:23,064 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:23,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:23,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:23,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:23,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:23,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:23,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:23,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:23,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:23,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:23,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:23,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:23,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:23,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:23,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:23,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:23,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:23,084 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 10:37:23,084 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,086 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:23,086 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:23,087 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:23,087 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2019-11-20 10:37:23,090 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:37:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:23,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 10:37:23,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:23,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 10:37:23,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:23,167 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-20 10:37:23,167 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 261 states and 338 transitions. cyclomatic complexity: 90 Second operand 5 states. [2019-11-20 10:37:23,262 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 261 states and 338 transitions. cyclomatic complexity: 90. Second operand 5 states. Result 302 states and 384 transitions. Complement of second has 11 states. [2019-11-20 10:37:23,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 10:37:23,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2019-11-20 10:37:23,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 21 letters. Loop has 3 letters. [2019-11-20 10:37:23,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:23,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 10:37:23,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:23,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 21 letters. Loop has 6 letters. [2019-11-20 10:37:23,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:23,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 384 transitions. [2019-11-20 10:37:23,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-20 10:37:23,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 292 states and 374 transitions. [2019-11-20 10:37:23,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2019-11-20 10:37:23,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2019-11-20 10:37:23,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 292 states and 374 transitions. [2019-11-20 10:37:23,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:23,274 INFO L688 BuchiCegarLoop]: Abstraction has 292 states and 374 transitions. [2019-11-20 10:37:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states and 374 transitions. [2019-11-20 10:37:23,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 279. [2019-11-20 10:37:23,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-11-20 10:37:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 360 transitions. [2019-11-20 10:37:23,284 INFO L711 BuchiCegarLoop]: Abstraction has 279 states and 360 transitions. [2019-11-20 10:37:23,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:23,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:37:23,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:37:23,285 INFO L87 Difference]: Start difference. First operand 279 states and 360 transitions. Second operand 6 states. [2019-11-20 10:37:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:23,332 INFO L93 Difference]: Finished difference Result 275 states and 351 transitions. [2019-11-20 10:37:23,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 10:37:23,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 351 transitions. [2019-11-20 10:37:23,336 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-20 10:37:23,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 196 states and 236 transitions. [2019-11-20 10:37:23,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-11-20 10:37:23,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-11-20 10:37:23,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 236 transitions. [2019-11-20 10:37:23,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:23,339 INFO L688 BuchiCegarLoop]: Abstraction has 196 states and 236 transitions. [2019-11-20 10:37:23,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 236 transitions. [2019-11-20 10:37:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 170. [2019-11-20 10:37:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-11-20 10:37:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 209 transitions. [2019-11-20 10:37:23,346 INFO L711 BuchiCegarLoop]: Abstraction has 170 states and 209 transitions. [2019-11-20 10:37:23,346 INFO L591 BuchiCegarLoop]: Abstraction has 170 states and 209 transitions. [2019-11-20 10:37:23,346 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-20 10:37:23,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 209 transitions. [2019-11-20 10:37:23,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-11-20 10:37:23,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:23,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:23,348 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:23,348 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:37:23,349 INFO L794 eck$LassoCheckResult]: Stem: 5667#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 5668#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 5642#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 5655#is_prime_ENTRY ~n := #in~n;~m := #in~m; 5656#L56 assume !(~n <= 1); 5649#L59 assume !(2 == ~n); 5650#L62 assume ~n > 2; 5661#L63 assume !(~m <= 1); 5742#L66 call #t~ret6 := multiple_of(~n, ~m);< 5761#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5758#L30 assume !(~m < 0); 5747#L33 assume !(~n < 0); 5745#L36 assume !(0 == ~m); 5744#L39 assume !(0 == ~n); 5687#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 5738#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5739#L30 assume !(~m < 0); 5764#L33 assume ~n < 0; 5626#L34 call #t~ret3 := multiple_of(-~n, ~m);< 5763#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5679#L30 assume !(~m < 0); 5623#L33 assume !(~n < 0); 5625#L36 [2019-11-20 10:37:23,349 INFO L796 eck$LassoCheckResult]: Loop: 5625#L36 assume !(0 == ~m); 5653#L39 assume !(0 == ~n); 5645#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 5644#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5789#L30 assume !(~m < 0); 5782#L33 assume !(~n < 0); 5625#L36 [2019-11-20 10:37:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:23,349 INFO L82 PathProgramCache]: Analyzing trace with hash -365122516, now seen corresponding path program 1 times [2019-11-20 10:37:23,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:23,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837303511] [2019-11-20 10:37:23,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:23,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837303511] [2019-11-20 10:37:23,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105533952] [2019-11-20 10:37:23,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:37:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:23,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 10:37:23,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:23,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:37:23,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-20 10:37:23,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391164621] [2019-11-20 10:37:23,458 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 10:37:23,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:23,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1367317725, now seen corresponding path program 2 times [2019-11-20 10:37:23,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:23,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894768464] [2019-11-20 10:37:23,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:23,464 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:23,557 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:23,557 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:23,557 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:23,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:23,557 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:37:23,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:23,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:23,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration10_Loop [2019-11-20 10:37:23,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:23,558 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:23,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:23,635 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:23,635 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:23,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:23,641 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 10:37:23,641 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {multiple_of_#t~ret2=0} Honda state: {multiple_of_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:37:23,645 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:23,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:37:23,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:37:26,143 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:37:26,144 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:37:26,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:37:26,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:37:26,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:37:26,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:37:26,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:26,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:37:26,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:37:26,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration10_Loop [2019-11-20 10:37:26,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:37:26,145 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:37:26,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:26,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:26,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:26,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:26,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:37:26,227 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:37:26,227 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:26,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 10:37:26,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:37:26,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:37:26,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:37:26,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:37:26,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:37:26,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:37:26,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:37:26,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:37:26,240 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:37:26,240 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:37:26,243 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:37:26,243 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:37:26,243 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:37:26,243 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_~n) = 1*multiple_of_~n Supporting invariants [] [2019-11-20 10:37:26,245 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:37:26,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 10:37:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:26,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:37:26,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:26,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 10:37:26,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:26,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:37:26,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:37:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:26,372 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 [2019-11-20 10:37:26,372 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49 Second operand 6 states. [2019-11-20 10:37:26,487 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49. Second operand 6 states. Result 197 states and 241 transitions. Complement of second has 15 states. [2019-11-20 10:37:26,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 10:37:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-20 10:37:26,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-20 10:37:26,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:26,488 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 10:37:26,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:26,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:37:26,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:26,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 10:37:26,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:26,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:37:26,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:37:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:26,599 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2019-11-20 10:37:26,600 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49 Second operand 6 states. [2019-11-20 10:37:26,690 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49. Second operand 6 states. Result 197 states and 241 transitions. Complement of second has 15 states. [2019-11-20 10:37:26,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 10:37:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-20 10:37:26,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-20 10:37:26,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:26,695 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 10:37:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:26,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:37:26,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:37:26,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 10:37:26,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:37:26,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:37:26,782 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:37:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:37:26,794 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2019-11-20 10:37:26,794 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49 Second operand 6 states. [2019-11-20 10:37:26,937 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49. Second operand 6 states. Result 265 states and 319 transitions. Complement of second has 16 states. [2019-11-20 10:37:26,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2019-11-20 10:37:26,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 10:37:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2019-11-20 10:37:26,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-20 10:37:26,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:26,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 28 letters. Loop has 6 letters. [2019-11-20 10:37:26,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:26,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 22 letters. Loop has 12 letters. [2019-11-20 10:37:26,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:37:26,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 319 transitions. [2019-11-20 10:37:26,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2019-11-20 10:37:26,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 223 states and 270 transitions. [2019-11-20 10:37:26,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-20 10:37:26,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2019-11-20 10:37:26,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 270 transitions. [2019-11-20 10:37:26,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:26,947 INFO L688 BuchiCegarLoop]: Abstraction has 223 states and 270 transitions. [2019-11-20 10:37:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 270 transitions. [2019-11-20 10:37:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 182. [2019-11-20 10:37:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-20 10:37:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 226 transitions. [2019-11-20 10:37:26,954 INFO L711 BuchiCegarLoop]: Abstraction has 182 states and 226 transitions. [2019-11-20 10:37:26,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:37:26,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 10:37:26,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:37:26,955 INFO L87 Difference]: Start difference. First operand 182 states and 226 transitions. Second operand 8 states. [2019-11-20 10:37:27,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:37:27,093 INFO L93 Difference]: Finished difference Result 243 states and 299 transitions. [2019-11-20 10:37:27,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 10:37:27,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 299 transitions. [2019-11-20 10:37:27,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2019-11-20 10:37:27,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 233 states and 289 transitions. [2019-11-20 10:37:27,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2019-11-20 10:37:27,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2019-11-20 10:37:27,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 289 transitions. [2019-11-20 10:37:27,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 10:37:27,101 INFO L688 BuchiCegarLoop]: Abstraction has 233 states and 289 transitions. [2019-11-20 10:37:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 289 transitions. [2019-11-20 10:37:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 212. [2019-11-20 10:37:27,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-11-20 10:37:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 266 transitions. [2019-11-20 10:37:27,110 INFO L711 BuchiCegarLoop]: Abstraction has 212 states and 266 transitions. [2019-11-20 10:37:27,110 INFO L591 BuchiCegarLoop]: Abstraction has 212 states and 266 transitions. [2019-11-20 10:37:27,110 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-20 10:37:27,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 266 transitions. [2019-11-20 10:37:27,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2019-11-20 10:37:27,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:37:27,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:37:27,114 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:27,114 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-20 10:37:27,115 INFO L794 eck$LassoCheckResult]: Stem: 7342#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 7343#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 7301#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 7325#is_prime_ENTRY ~n := #in~n;~m := #in~m; 7326#L56 assume !(~n <= 1); 7349#L59 assume !(2 == ~n); 7331#L62 assume ~n > 2; 7332#L63 assume !(~m <= 1); 7352#L66 call #t~ret6 := multiple_of(~n, ~m);< 7353#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7403#L30 assume !(~m < 0); 7402#L33 assume !(~n < 0); 7401#L36 assume !(0 == ~m); 7386#L39 assume !(0 == ~n); 7379#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 7395#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7394#L30 assume !(~m < 0); 7393#L33 assume !(~n < 0); 7385#L36 assume !(0 == ~m); 7382#L39 assume !(0 == ~n); 7369#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 7378#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7377#L30 assume !(~m < 0); 7368#L33 assume ~n < 0; 7294#L34 call #t~ret3 := multiple_of(-~n, ~m);< 7373#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7372#L30 assume !(~m < 0); 7292#L33 assume !(~n < 0); 7295#L36 [2019-11-20 10:37:27,115 INFO L796 eck$LassoCheckResult]: Loop: 7295#L36 assume !(0 == ~m); 7338#L39 assume !(0 == ~n); 7313#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 7358#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7396#L30 assume !(~m < 0); 7374#L33 assume ~n < 0; 7312#L34 call #t~ret3 := multiple_of(-~n, ~m);< 7314#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7375#L30 assume !(~m < 0); 7376#L33 assume !(~n < 0); 7295#L36 [2019-11-20 10:37:27,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:27,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1641835528, now seen corresponding path program 2 times [2019-11-20 10:37:27,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:27,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384382337] [2019-11-20 10:37:27,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:27,137 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:27,137 INFO L82 PathProgramCache]: Analyzing trace with hash 478329012, now seen corresponding path program 1 times [2019-11-20 10:37:27,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:27,138 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102139195] [2019-11-20 10:37:27,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:27,146 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:27,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:37:27,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1762199547, now seen corresponding path program 3 times [2019-11-20 10:37:27,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:37:27,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842248405] [2019-11-20 10:37:27,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:37:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:37:27,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:37:27,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:37:27 BoogieIcfgContainer [2019-11-20 10:37:27,792 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:37:27,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:37:27,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:37:27,793 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:37:27,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:12" (3/4) ... [2019-11-20 10:37:27,796 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-20 10:37:27,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f151fec7-fb61-4820-9c10-76e6d771fbf2/bin/uautomizer/witness.graphml [2019-11-20 10:37:27,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:37:27,834 INFO L168 Benchmark]: Toolchain (without parser) took 15873.34 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 331.4 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -80.4 MB). Peak memory consumption was 250.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:37:27,835 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:37:27,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:37:27,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:37:27,836 INFO L168 Benchmark]: Boogie Preprocessor took 20.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:37:27,836 INFO L168 Benchmark]: RCFGBuilder took 382.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:37:27,836 INFO L168 Benchmark]: BuchiAutomizer took 15110.19 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.5 MB). Peak memory consumption was 257.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:37:27,837 INFO L168 Benchmark]: Witness Printer took 39.87 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:37:27,839 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 382.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15110.19 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 187.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.5 MB). Peak memory consumption was 257.6 MB. Max. memory is 11.5 GB. * Witness Printer took 39.87 ms. Allocated memory is still 1.4 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 16 terminating modules (8 trivial, 7 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(m) and consists of 9 locations. One deterministic module has affine ranking function m and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(n) and consists of 4 locations. One deterministic module has affine ranking function \old(n) and consists of 6 locations. One deterministic module has affine ranking function m and consists of 6 locations. One deterministic module has affine ranking function m and consists of 5 locations. One nondeterministic module has affine ranking function n and consists of 6 locations. 8 modules have a trivial ranking function, the largest among these consists of 10 locations. The remainder module has 212 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.0s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 10.8s. Construction of modules took 1.2s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 14. Automata minimization 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 304 StatesRemovedByMinimization, 16 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 261 states and ocurred in iteration 8. Nontrivial modules had stage [7, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/7 HoareTripleCheckerStatistics: 693 SDtfs, 703 SDslu, 1178 SDs, 0 SdLazy, 968 SolverSat, 199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf99 lsp81 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq175 hnf92 smp90 dnf100 smp100 tf109 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 36]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {n=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fb2f1d9=0, \result=0, f1=0, m=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a54eee7=0, n=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dc12ad6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b4973c7=0, result=0, f2=0, m=2, n=1, \result=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be3c421=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a4e677=0, \old(n)=1, \old(m)=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@543d3af3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61052d0e=0, n=0, \old(n)=0, \result=0, \old(m)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57700822=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f12453b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f3c071e=0, \old(n)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@66ccba8a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 36]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L75] int n = __VERIFIER_nondet_int(); [L76] COND FALSE !(n < 1 || n > 46340) [L51] CALL is_prime_(n, n - 1) [L56] COND FALSE !(n <= 1) [L59] COND FALSE !(n == 2) [L62] COND TRUE n > 2 [L63] COND FALSE !(m <= 1) [L66] CALL multiple_of(n, m) [L30] COND FALSE !(m < 0) [L33] COND FALSE !(n < 0) [L36] COND FALSE !(m == 0) [L39] COND FALSE !(n == 0) [L42] CALL multiple_of(n - m, m) [L30] COND FALSE !(m < 0) [L33] COND FALSE !(n < 0) [L36] COND FALSE !(m == 0) [L39] COND FALSE !(n == 0) [L42] CALL multiple_of(n - m, m) [L30] COND FALSE !(m < 0) [L33] COND TRUE n < 0 [L34] CALL multiple_of(-n, m) [L30] COND FALSE !(m < 0) [L33] COND FALSE !(n < 0) Loop: [L36] COND FALSE !(m == 0) [L39] COND FALSE !(n == 0) [L42] CALL multiple_of(n - m, m) [L30] COND FALSE !(m < 0) [L33] COND TRUE n < 0 [L34] CALL multiple_of(-n, m) [L30] COND FALSE !(m < 0) [L33] COND FALSE !(n < 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...