./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 f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/Primes.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-f6fb2bb [2019-11-19 20:05:32,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:05:32,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:05:32,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:05:32,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:05:32,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:05:32,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:05:32,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:05:32,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:05:32,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:05:32,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:05:32,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:05:32,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:05:32,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:05:32,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:05:32,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:05:32,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:05:32,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:05:32,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:05:32,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:05:32,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:05:32,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:05:32,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:05:32,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:05:32,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:05:32,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:05:32,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:05:32,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:05:32,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:05:32,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:05:32,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:05:32,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:05:32,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:05:32,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:05:32,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:05:32,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:05:32,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:05:32,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:05:32,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:05:32,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:05:32,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:05:32,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:05:32,183 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:05:32,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:05:32,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:05:32,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:05:32,188 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:05:32,189 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:05:32,189 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:05:32,189 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:05:32,189 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:05:32,190 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:05:32,190 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:05:32,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:05:32,190 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:05:32,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:05:32,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:05:32,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:05:32,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:05:32,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:05:32,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:05:32,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:05:32,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:05:32,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:05:32,196 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:05:32,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:05:32,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:05:32,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:05:32,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:05:32,197 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:05:32,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:05:32,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:05:32,197 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:05:32,199 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:05:32,200 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2019-11-19 20:05:32,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:05:32,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:05:32,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:05:32,551 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:05:32,552 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:05:32,552 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Primes.c [2019-11-19 20:05:32,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea386f9d/27c197c0255c49fb956f5ed87bf11b2b/FLAG807314aeb [2019-11-19 20:05:33,079 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:05:33,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Primes.c [2019-11-19 20:05:33,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea386f9d/27c197c0255c49fb956f5ed87bf11b2b/FLAG807314aeb [2019-11-19 20:05:33,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea386f9d/27c197c0255c49fb956f5ed87bf11b2b [2019-11-19 20:05:33,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:05:33,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:05:33,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:33,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:05:33,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:05:33,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9eb12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33, skipping insertion in model container [2019-11-19 20:05:33,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:05:33,495 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:05:33,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:33,709 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:05:33,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:33,745 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:05:33,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33 WrapperNode [2019-11-19 20:05:33,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:33,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:33,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:05:33,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:05:33,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:33,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:05:33,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:05:33,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:05:33,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... [2019-11-19 20:05:33,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:05:33,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:05:33,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:05:33,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:05:33,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2019-11-19 20:05:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2019-11-19 20:05:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2019-11-19 20:05:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2019-11-19 20:05:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:05:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:05:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2019-11-19 20:05:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2019-11-19 20:05:34,264 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:05:34,265 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 20:05:34,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:34 BoogieIcfgContainer [2019-11-19 20:05:34,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:05:34,267 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:05:34,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:05:34,271 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:05:34,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:34,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:05:33" (1/3) ... [2019-11-19 20:05:34,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52d575c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:34, skipping insertion in model container [2019-11-19 20:05:34,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:34,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:33" (2/3) ... [2019-11-19 20:05:34,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52d575c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:34, skipping insertion in model container [2019-11-19 20:05:34,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:34,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:34" (3/3) ... [2019-11-19 20:05:34,276 INFO L371 chiAutomizerObserver]: Analyzing ICFG Primes.c [2019-11-19 20:05:34,318 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:05:34,318 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:05:34,318 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:05:34,318 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:05:34,318 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:05:34,319 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:05:34,319 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:05:34,319 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:05:34,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states. [2019-11-19 20:05:34,363 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-19 20:05:34,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:34,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:34,373 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 20:05:34,373 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:34,373 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:05:34,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states. [2019-11-19 20:05:34,379 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-19 20:05:34,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:34,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:34,380 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 20:05:34,381 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:34,389 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 13#L76true assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 10#L51true call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 12#is_prime_ENTRYtrue [2019-11-19 20:05:34,389 INFO L796 eck$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 [2019-11-19 20:05:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:34,395 INFO L82 PathProgramCache]: Analyzing trace with hash 72718, now seen corresponding path program 1 times [2019-11-19 20:05:34,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:34,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139965459] [2019-11-19 20:05:34,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:34,510 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:34,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1613119264, now seen corresponding path program 1 times [2019-11-19 20:05:34,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:34,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295411262] [2019-11-19 20:05:34,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:34,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295411262] [2019-11-19 20:05:34,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:34,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 20:05:34,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829420246] [2019-11-19 20:05:34,632 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:34,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:34,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:05:34,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:05:34,649 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 5 states. [2019-11-19 20:05:34,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:34,778 INFO L93 Difference]: Finished difference Result 55 states and 79 transitions. [2019-11-19 20:05:34,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 20:05:34,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 79 transitions. [2019-11-19 20:05:34,787 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-19 20:05:34,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 40 states and 53 transitions. [2019-11-19 20:05:34,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2019-11-19 20:05:34,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2019-11-19 20:05:34,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 53 transitions. [2019-11-19 20:05:34,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:34,801 INFO L688 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2019-11-19 20:05:34,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 53 transitions. [2019-11-19 20:05:34,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2019-11-19 20:05:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-19 20:05:34,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2019-11-19 20:05:34,837 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 50 transitions. [2019-11-19 20:05:34,838 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 50 transitions. [2019-11-19 20:05:34,838 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:05:34,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 50 transitions. [2019-11-19 20:05:34,840 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-19 20:05:34,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:34,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:34,841 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 20:05:34,841 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:34,842 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 [2019-11-19 20:05:34,842 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 [2019-11-19 20:05:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:34,843 INFO L82 PathProgramCache]: Analyzing trace with hash 72718, now seen corresponding path program 2 times [2019-11-19 20:05:34,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:34,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612949801] [2019-11-19 20:05:34,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:34,856 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:34,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:34,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1554944608, now seen corresponding path program 1 times [2019-11-19 20:05:34,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:34,859 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111396972] [2019-11-19 20:05:34,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:34,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111396972] [2019-11-19 20:05:34,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:34,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 20:05:34,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183136296] [2019-11-19 20:05:34,949 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:34,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:34,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:05:34,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:05:34,950 INFO L87 Difference]: Start difference. First operand 38 states and 50 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-11-19 20:05:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:35,053 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2019-11-19 20:05:35,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 20:05:35,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2019-11-19 20:05:35,062 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-19 20:05:35,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 56 transitions. [2019-11-19 20:05:35,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-11-19 20:05:35,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2019-11-19 20:05:35,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 56 transitions. [2019-11-19 20:05:35,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:35,072 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-19 20:05:35,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 56 transitions. [2019-11-19 20:05:35,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2019-11-19 20:05:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-19 20:05:35,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2019-11-19 20:05:35,087 INFO L711 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2019-11-19 20:05:35,088 INFO L591 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2019-11-19 20:05:35,088 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:05:35,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 53 transitions. [2019-11-19 20:05:35,089 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2019-11-19 20:05:35,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:35,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:35,093 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 20:05:35,096 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] [2019-11-19 20:05:35,097 INFO L794 eck$LassoCheckResult]: Stem: 255#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 246#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 235#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 243#is_prime_ENTRY [2019-11-19 20:05:35,097 INFO L796 eck$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 [2019-11-19 20:05:35,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:35,098 INFO L82 PathProgramCache]: Analyzing trace with hash 72718, now seen corresponding path program 3 times [2019-11-19 20:05:35,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:35,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993772292] [2019-11-19 20:05:35,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:35,121 INFO L82 PathProgramCache]: Analyzing trace with hash 326750000, now seen corresponding path program 1 times [2019-11-19 20:05:35,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:35,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494105520] [2019-11-19 20:05:35,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,174 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:35,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1599788093, now seen corresponding path program 1 times [2019-11-19 20:05:35,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:35,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736416160] [2019-11-19 20:05:35,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:05:35,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736416160] [2019-11-19 20:05:35,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242336355] [2019-11-19 20:05:35,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:35,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:05:35,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:05:35,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:05:35,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2019-11-19 20:05:35,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137744161] [2019-11-19 20:05:35,869 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:35,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:35,870 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:35,870 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:35,871 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:35,871 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:35,871 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:35,871 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:35,871 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration3_Loop [2019-11-19 20:05:35,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:35,872 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:35,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:35,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:35,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:35,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:35,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:35,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:35,998 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:35,999 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:36,008 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 [2019-11-19 20:05:36,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:36,018 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:36,034 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 [2019-11-19 20:05:36,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:36,039 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:36,053 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 [2019-11-19 20:05:36,059 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:36,059 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:36,089 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 [2019-11-19 20:05:36,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:36,097 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:36,113 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:36,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:36,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:36,206 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:36,208 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:36,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:36,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:36,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:36,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:36,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:36,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:36,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:36,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration3_Loop [2019-11-19 20:05:36,210 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:36,210 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:36,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:36,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:36,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:36,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:36,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:36,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:36,306 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:36,311 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:36,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:36,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:36,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:36,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:36,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:36,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:36,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:36,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:36,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:36,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:36,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:36,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:36,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:36,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:36,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:36,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:36,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:36,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:36,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:36,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:36,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:36,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:36,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:36,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:36,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:36,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:36,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:36,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:36,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:36,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:36,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:36,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:36,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:36,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:36,413 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 20:05:36,413 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:36,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:36,469 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:36,469 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:36,471 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(is_prime__#in~m) = 1*is_prime__#in~m Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:36,476 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 20:05:36,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:36,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 20:05:36,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:36,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-19 20:05:36,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:05:36,752 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 [2019-11-19 20:05:36,753 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 16 Second operand 10 states. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe [2019-11-19 20:05:37,271 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. [2019-11-19 20:05:37,272 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 [2019-11-19 20:05:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 20:05:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 44 transitions. [2019-11-19 20:05:37,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 3 letters. Loop has 24 letters. [2019-11-19 20:05:37,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:37,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 27 letters. Loop has 24 letters. [2019-11-19 20:05:37,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:37,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 3 letters. Loop has 48 letters. [2019-11-19 20:05:37,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:37,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 238 transitions. [2019-11-19 20:05:37,287 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2019-11-19 20:05:37,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 150 states and 200 transitions. [2019-11-19 20:05:37,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2019-11-19 20:05:37,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2019-11-19 20:05:37,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 200 transitions. [2019-11-19 20:05:37,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:37,297 INFO L688 BuchiCegarLoop]: Abstraction has 150 states and 200 transitions. [2019-11-19 20:05:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 200 transitions. [2019-11-19 20:05:37,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 107. [2019-11-19 20:05:37,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-19 20:05:37,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 138 transitions. [2019-11-19 20:05:37,312 INFO L711 BuchiCegarLoop]: Abstraction has 107 states and 138 transitions. [2019-11-19 20:05:37,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:37,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-19 20:05:37,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-19 20:05:37,314 INFO L87 Difference]: Start difference. First operand 107 states and 138 transitions. Second operand 10 states. [2019-11-19 20:05:37,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:37,546 INFO L93 Difference]: Finished difference Result 145 states and 192 transitions. [2019-11-19 20:05:37,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 20:05:37,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 192 transitions. [2019-11-19 20:05:37,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2019-11-19 20:05:37,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 139 states and 184 transitions. [2019-11-19 20:05:37,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2019-11-19 20:05:37,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2019-11-19 20:05:37,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 184 transitions. [2019-11-19 20:05:37,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:37,557 INFO L688 BuchiCegarLoop]: Abstraction has 139 states and 184 transitions. [2019-11-19 20:05:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 184 transitions. [2019-11-19 20:05:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 111. [2019-11-19 20:05:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-19 20:05:37,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 144 transitions. [2019-11-19 20:05:37,569 INFO L711 BuchiCegarLoop]: Abstraction has 111 states and 144 transitions. [2019-11-19 20:05:37,569 INFO L591 BuchiCegarLoop]: Abstraction has 111 states and 144 transitions. [2019-11-19 20:05:37,569 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:05:37,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 144 transitions. [2019-11-19 20:05:37,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2019-11-19 20:05:37,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:37,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:37,572 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:37,573 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:05:37,573 INFO L794 eck$LassoCheckResult]: Stem: 1023#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 1002#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 979#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 994#is_prime_ENTRY ~n := #in~n;~m := #in~m; 996#L56 assume !(~n <= 1); 978#L59 assume !(2 == ~n); 981#L62 assume ~n > 2; 999#L63 assume !(~m <= 1); 972#L66 call #t~ret6 := multiple_of(~n, ~m);< 1031#multiple_ofENTRY ~n := #in~n;~m := #in~m; 1059#L30 assume ~m < 0; 1006#L31 [2019-11-19 20:05:37,573 INFO L796 eck$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 [2019-11-19 20:05:37,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:37,574 INFO L82 PathProgramCache]: Analyzing trace with hash 313603312, now seen corresponding path program 1 times [2019-11-19 20:05:37,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:37,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364831743] [2019-11-19 20:05:37,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:37,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364831743] [2019-11-19 20:05:37,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:37,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:05:37,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077813857] [2019-11-19 20:05:37,621 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:05:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:37,621 INFO L82 PathProgramCache]: Analyzing trace with hash 131660, now seen corresponding path program 1 times [2019-11-19 20:05:37,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:37,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483261781] [2019-11-19 20:05:37,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:37,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:37,704 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:37,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:37,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:37,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:37,704 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:37,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:37,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:37,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:37,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration4_Loop [2019-11-19 20:05:37,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:37,705 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:37,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:37,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:37,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:37,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:37,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:37,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:37,780 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:37,781 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:37,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:37,803 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 [2019-11-19 20:05:37,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:37,809 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:37,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:37,825 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 [2019-11-19 20:05:37,830 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:37,831 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:37,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:37,846 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 [2019-11-19 20:05:37,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:37,851 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:37,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:37,868 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:37,873 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:37,874 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:37,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:37,891 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:37,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:37,918 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:39,329 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:39,331 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:39,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:39,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:39,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:39,332 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:39,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:39,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:39,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:39,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration4_Loop [2019-11-19 20:05:39,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:39,332 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:39,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,406 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:39,406 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:39,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:39,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:39,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:39,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:39,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:39,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:39,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:39,420 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 [2019-11-19 20:05:39,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:39,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:39,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:39,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:39,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:39,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:39,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:39,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:39,442 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 [2019-11-19 20:05:39,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:39,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:39,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:39,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:39,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:39,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:39,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:39,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:39,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:39,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:39,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:39,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:39,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:39,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:39,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:39,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:39,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:39,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:39,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:39,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:39,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:39,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:39,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:39,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:39,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:39,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:39,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:39,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:39,535 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 20:05:39,535 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:39,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:39,541 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:39,541 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:39,541 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_~m) = 1*multiple_of_~m Supporting invariants [] [2019-11-19 20:05:39,552 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:39,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 20:05:39,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:39,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 20:05:39,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:39,620 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 20:05:39,620 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 144 transitions. cyclomatic complexity: 37 Second operand 4 states. [2019-11-19 20:05:39,700 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. [2019-11-19 20:05:39,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-19 20:05:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 20:05:39,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2019-11-19 20:05:39,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 66 transitions. Stem has 11 letters. Loop has 3 letters. [2019-11-19 20:05:39,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:39,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 66 transitions. Stem has 14 letters. Loop has 3 letters. [2019-11-19 20:05:39,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:39,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 66 transitions. Stem has 11 letters. Loop has 6 letters. [2019-11-19 20:05:39,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:39,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 271 transitions. [2019-11-19 20:05:39,715 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 34 [2019-11-19 20:05:39,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 155 states and 200 transitions. [2019-11-19 20:05:39,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2019-11-19 20:05:39,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2019-11-19 20:05:39,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 200 transitions. [2019-11-19 20:05:39,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:39,724 INFO L688 BuchiCegarLoop]: Abstraction has 155 states and 200 transitions. [2019-11-19 20:05:39,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 200 transitions. [2019-11-19 20:05:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 126. [2019-11-19 20:05:39,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-19 20:05:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2019-11-19 20:05:39,750 INFO L711 BuchiCegarLoop]: Abstraction has 126 states and 164 transitions. [2019-11-19 20:05:39,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:39,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:05:39,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:05:39,754 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand 5 states. [2019-11-19 20:05:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:39,796 INFO L93 Difference]: Finished difference Result 114 states and 144 transitions. [2019-11-19 20:05:39,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 20:05:39,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 144 transitions. [2019-11-19 20:05:39,799 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-19 20:05:39,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 114 states and 144 transitions. [2019-11-19 20:05:39,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2019-11-19 20:05:39,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2019-11-19 20:05:39,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 144 transitions. [2019-11-19 20:05:39,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:39,803 INFO L688 BuchiCegarLoop]: Abstraction has 114 states and 144 transitions. [2019-11-19 20:05:39,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 144 transitions. [2019-11-19 20:05:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2019-11-19 20:05:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-19 20:05:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2019-11-19 20:05:39,810 INFO L711 BuchiCegarLoop]: Abstraction has 110 states and 140 transitions. [2019-11-19 20:05:39,810 INFO L591 BuchiCegarLoop]: Abstraction has 110 states and 140 transitions. [2019-11-19 20:05:39,810 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 20:05:39,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 140 transitions. [2019-11-19 20:05:39,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-19 20:05:39,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:39,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:39,812 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:39,812 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:05:39,812 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 [2019-11-19 20:05:39,813 INFO L796 eck$LassoCheckResult]: Loop: 1628#multENTRY ~n := #in~n;~m := #in~m; 1610#L16 assume ~m < 0; 1613#L17 call #t~ret0 := mult(~n, -~m);< 1628#multENTRY [2019-11-19 20:05:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:39,813 INFO L82 PathProgramCache]: Analyzing trace with hash -312507047, now seen corresponding path program 1 times [2019-11-19 20:05:39,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:39,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015312112] [2019-11-19 20:05:39,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:39,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015312112] [2019-11-19 20:05:39,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:39,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 20:05:39,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541057435] [2019-11-19 20:05:39,879 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:05:39,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:39,880 INFO L82 PathProgramCache]: Analyzing trace with hash 53804, now seen corresponding path program 1 times [2019-11-19 20:05:39,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:39,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810017483] [2019-11-19 20:05:39,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:39,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:39,936 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:39,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:39,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:39,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:39,936 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:39,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:39,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:39,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:39,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration5_Loop [2019-11-19 20:05:39,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:39,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:39,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:39,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,007 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:40,007 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,018 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:40,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,030 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,032 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,033 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,045 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,045 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,056 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,064 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,064 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,072 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,073 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:40,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,078 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:40,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,096 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:40,098 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:40,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:40,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:40,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:40,098 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:40,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:40,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:40,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration5_Loop [2019-11-19 20:05:40,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:40,099 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:40,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,168 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:40,168 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:40,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,182 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 [2019-11-19 20:05:40,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:40,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,200 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 [2019-11-19 20:05:40,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:40,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:40,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,265 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:40,267 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 20:05:40,267 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:40,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:40,273 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:40,273 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:40,273 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2019-11-19 20:05:40,274 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 20:05:40,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:40,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 20:05:40,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:40,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 20:05:40,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:40,378 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 [2019-11-19 20:05:40,379 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 110 states and 140 transitions. cyclomatic complexity: 34 Second operand 5 states. [2019-11-19 20:05:40,494 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. [2019-11-19 20:05:40,496 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 [2019-11-19 20:05:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:05:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2019-11-19 20:05:40,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-19 20:05:40,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:40,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 16 letters. Loop has 3 letters. [2019-11-19 20:05:40,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:40,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 13 letters. Loop has 6 letters. [2019-11-19 20:05:40,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:40,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 176 transitions. [2019-11-19 20:05:40,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-19 20:05:40,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 134 states and 168 transitions. [2019-11-19 20:05:40,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2019-11-19 20:05:40,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 81 [2019-11-19 20:05:40,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 168 transitions. [2019-11-19 20:05:40,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:40,505 INFO L688 BuchiCegarLoop]: Abstraction has 134 states and 168 transitions. [2019-11-19 20:05:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 168 transitions. [2019-11-19 20:05:40,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 121. [2019-11-19 20:05:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-19 20:05:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2019-11-19 20:05:40,512 INFO L711 BuchiCegarLoop]: Abstraction has 121 states and 154 transitions. [2019-11-19 20:05:40,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:40,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 20:05:40,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 20:05:40,513 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand 7 states. [2019-11-19 20:05:40,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:40,558 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2019-11-19 20:05:40,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 20:05:40,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 163 transitions. [2019-11-19 20:05:40,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-19 20:05:40,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 122 states and 154 transitions. [2019-11-19 20:05:40,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-11-19 20:05:40,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-11-19 20:05:40,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 154 transitions. [2019-11-19 20:05:40,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:40,564 INFO L688 BuchiCegarLoop]: Abstraction has 122 states and 154 transitions. [2019-11-19 20:05:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 154 transitions. [2019-11-19 20:05:40,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2019-11-19 20:05:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-19 20:05:40,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2019-11-19 20:05:40,570 INFO L711 BuchiCegarLoop]: Abstraction has 120 states and 151 transitions. [2019-11-19 20:05:40,570 INFO L591 BuchiCegarLoop]: Abstraction has 120 states and 151 transitions. [2019-11-19 20:05:40,570 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 20:05:40,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 151 transitions. [2019-11-19 20:05:40,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-19 20:05:40,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:40,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:40,572 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:40,572 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:05:40,572 INFO L794 eck$LassoCheckResult]: Stem: 2269#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 2250#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 2229#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 2239#is_prime_ENTRY ~n := #in~n;~m := #in~m; 2241#L56 assume !(~n <= 1); 2284#L59 assume !(2 == ~n); 2285#L62 assume ~n > 2; 2246#L63 assume !(~m <= 1); 2214#L66 call #t~ret6 := multiple_of(~n, ~m);< 2276#multiple_ofENTRY ~n := #in~n;~m := #in~m; 2273#L30 assume !(~m < 0); 2261#L33 assume ~n < 0; 2201#L34 call #t~ret3 := multiple_of(-~n, ~m);< 2216#multiple_ofENTRY [2019-11-19 20:05:40,572 INFO L796 eck$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 [2019-11-19 20:05:40,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:40,573 INFO L82 PathProgramCache]: Analyzing trace with hash 725075382, now seen corresponding path program 1 times [2019-11-19 20:05:40,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:40,573 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282447417] [2019-11-19 20:05:40,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:40,645 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282447417] [2019-11-19 20:05:40,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:40,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 20:05:40,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064326619] [2019-11-19 20:05:40,645 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:05:40,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:40,646 INFO L82 PathProgramCache]: Analyzing trace with hash 929674, now seen corresponding path program 1 times [2019-11-19 20:05:40,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:40,647 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208667583] [2019-11-19 20:05:40,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:40,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:40,704 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:40,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:40,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:40,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:40,704 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:40,705 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:40,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:40,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration6_Loop [2019-11-19 20:05:40,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:40,705 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:40,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,775 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:40,776 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:40,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,784 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:40,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,793 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,793 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:40,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,802 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:40,802 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:40,808 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:40,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:40,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:40,831 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:40,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:40,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:40,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:40,831 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:40,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:40,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:40,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration6_Loop [2019-11-19 20:05:40,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:40,832 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:40,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:40,902 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:40,902 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:40,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:40,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:40,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:40,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:40,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:40,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:40,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:40,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:40,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:40,949 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 20:05:40,949 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:40,959 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:40,960 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:40,960 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:40,960 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_#in~n) = -1*multiple_of_#in~n Supporting invariants [] [2019-11-19 20:05:40,962 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 [2019-11-19 20:05:40,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:41,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 20:05:41,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:41,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 20:05:41,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:41,053 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-19 20:05:41,054 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 120 states and 151 transitions. cyclomatic complexity: 36 Second operand 4 states. [2019-11-19 20:05:41,124 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. [2019-11-19 20:05:41,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:05:41,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 20:05:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2019-11-19 20:05:41,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 13 letters. Loop has 4 letters. [2019-11-19 20:05:41,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:41,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 17 letters. Loop has 4 letters. [2019-11-19 20:05:41,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:41,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 55 transitions. Stem has 13 letters. Loop has 8 letters. [2019-11-19 20:05:41,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:41,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 352 transitions. [2019-11-19 20:05:41,132 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 32 [2019-11-19 20:05:41,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 246 states and 328 transitions. [2019-11-19 20:05:41,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2019-11-19 20:05:41,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 132 [2019-11-19 20:05:41,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 328 transitions. [2019-11-19 20:05:41,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:41,137 INFO L688 BuchiCegarLoop]: Abstraction has 246 states and 328 transitions. [2019-11-19 20:05:41,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 328 transitions. [2019-11-19 20:05:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 216. [2019-11-19 20:05:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-11-19 20:05:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2019-11-19 20:05:41,148 INFO L711 BuchiCegarLoop]: Abstraction has 216 states and 283 transitions. [2019-11-19 20:05:41,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:41,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 20:05:41,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 20:05:41,149 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand 7 states. [2019-11-19 20:05:41,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:41,268 INFO L93 Difference]: Finished difference Result 220 states and 287 transitions. [2019-11-19 20:05:41,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 20:05:41,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 220 states and 287 transitions. [2019-11-19 20:05:41,272 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-19 20:05:41,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 220 states to 220 states and 287 transitions. [2019-11-19 20:05:41,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2019-11-19 20:05:41,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2019-11-19 20:05:41,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 287 transitions. [2019-11-19 20:05:41,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:41,276 INFO L688 BuchiCegarLoop]: Abstraction has 220 states and 287 transitions. [2019-11-19 20:05:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 287 transitions. [2019-11-19 20:05:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2019-11-19 20:05:41,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-11-19 20:05:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2019-11-19 20:05:41,284 INFO L711 BuchiCegarLoop]: Abstraction has 216 states and 282 transitions. [2019-11-19 20:05:41,284 INFO L591 BuchiCegarLoop]: Abstraction has 216 states and 282 transitions. [2019-11-19 20:05:41,284 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 20:05:41,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 216 states and 282 transitions. [2019-11-19 20:05:41,286 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-19 20:05:41,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:41,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:41,287 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:41,287 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:05:41,287 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 [2019-11-19 20:05:41,287 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 [2019-11-19 20:05:41,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:41,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1012741841, now seen corresponding path program 1 times [2019-11-19 20:05:41,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:41,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143323688] [2019-11-19 20:05:41,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:41,303 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:41,303 INFO L82 PathProgramCache]: Analyzing trace with hash 893418405, now seen corresponding path program 1 times [2019-11-19 20:05:41,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:41,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192568497] [2019-11-19 20:05:41,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:41,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:41,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:41,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2089986443, now seen corresponding path program 2 times [2019-11-19 20:05:41,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:41,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672905550] [2019-11-19 20:05:41,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:41,340 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:41,408 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:41,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:41,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:41,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:41,409 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:41,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:41,409 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:41,409 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:41,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration7_Loop [2019-11-19 20:05:41,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:41,410 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:41,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,491 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:41,492 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:41,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:41,500 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:41,504 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:41,504 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:41,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:41,512 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:41,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:41,530 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 [2019-11-19 20:05:41,645 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:41,647 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:41,647 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:41,647 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:41,647 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:41,647 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:41,647 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:41,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:41,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:41,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration7_Loop [2019-11-19 20:05:41,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:41,648 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:41,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:41,755 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:41,755 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:41,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:41,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:41,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:41,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:41,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:41,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:41,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:41,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:41,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:41,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:41,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:41,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:41,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:41,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:41,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:41,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:41,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:41,781 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:41,786 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 20:05:41,786 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:41,789 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:41,789 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:41,789 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:41,790 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_#in~n) = 1*multiple_of_#in~n Supporting invariants [] [2019-11-19 20:05:41,791 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 20:05:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:41,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 20:05:41,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:41,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-19 20:05:41,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:41,886 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 [2019-11-19 20:05:41,887 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 216 states and 282 transitions. cyclomatic complexity: 76 Second operand 6 states. [2019-11-19 20:05:41,998 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. [2019-11-19 20:05:41,999 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 [2019-11-19 20:05:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 20:05:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2019-11-19 20:05:42,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 42 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-19 20:05:42,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:42,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 42 transitions. Stem has 21 letters. Loop has 6 letters. [2019-11-19 20:05:42,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:42,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 42 transitions. Stem has 15 letters. Loop has 12 letters. [2019-11-19 20:05:42,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:42,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 416 transitions. [2019-11-19 20:05:42,006 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 32 [2019-11-19 20:05:42,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 284 states and 368 transitions. [2019-11-19 20:05:42,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 140 [2019-11-19 20:05:42,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2019-11-19 20:05:42,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 284 states and 368 transitions. [2019-11-19 20:05:42,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:42,011 INFO L688 BuchiCegarLoop]: Abstraction has 284 states and 368 transitions. [2019-11-19 20:05:42,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states and 368 transitions. [2019-11-19 20:05:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 251. [2019-11-19 20:05:42,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-11-19 20:05:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 326 transitions. [2019-11-19 20:05:42,021 INFO L711 BuchiCegarLoop]: Abstraction has 251 states and 326 transitions. [2019-11-19 20:05:42,021 INFO L591 BuchiCegarLoop]: Abstraction has 251 states and 326 transitions. [2019-11-19 20:05:42,021 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-19 20:05:42,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 251 states and 326 transitions. [2019-11-19 20:05:42,023 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-19 20:05:42,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:42,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:42,024 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:42,024 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-19 20:05:42,024 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 [2019-11-19 20:05:42,024 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 [2019-11-19 20:05:42,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:42,025 INFO L82 PathProgramCache]: Analyzing trace with hash -53610220, now seen corresponding path program 1 times [2019-11-19 20:05:42,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:42,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84436777] [2019-11-19 20:05:42,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:42,039 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:42,040 INFO L82 PathProgramCache]: Analyzing trace with hash 61271251, now seen corresponding path program 1 times [2019-11-19 20:05:42,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:42,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242661900] [2019-11-19 20:05:42,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:42,045 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:42,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:42,046 INFO L82 PathProgramCache]: Analyzing trace with hash 102279072, now seen corresponding path program 1 times [2019-11-19 20:05:42,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:42,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53661396] [2019-11-19 20:05:42,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:42,072 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:42,146 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:42,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:42,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:42,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:42,146 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:42,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:42,147 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:42,147 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:42,147 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration8_Loop [2019-11-19 20:05:42,147 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:42,147 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:42,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:42,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:42,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:42,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:42,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:42,216 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:42,217 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:42,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:42,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:42,225 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:42,225 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:42,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:42,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:42,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:42,232 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:42,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:42,239 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:42,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:42,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:43,205 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:43,207 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:43,207 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:43,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:43,207 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:43,207 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:43,207 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,208 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:43,208 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:43,208 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration8_Loop [2019-11-19 20:05:43,208 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:43,208 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:43,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,287 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:43,287 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:43,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:43,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:43,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:43,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:43,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:43,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:43,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:43,296 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:43,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:43,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:43,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:43,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:43,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:43,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:43,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:43,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:43,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:43,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:43,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:43,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:43,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:43,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:43,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:43,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:43,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:43,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:43,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:43,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:43,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:43,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:43,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:43,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:43,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:43,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:43,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:43,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:43,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:43,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:43,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:43,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:43,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:43,346 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:43,349 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 20:05:43,349 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:43,353 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:43,353 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:43,354 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:43,354 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2019-11-19 20:05:43,355 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 20:05:43,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:43,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 20:05:43,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:43,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 20:05:43,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:43,433 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 [2019-11-19 20:05:43,433 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 251 states and 326 transitions. cyclomatic complexity: 87 Second operand 6 states. [2019-11-19 20:05:43,522 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. [2019-11-19 20:05:43,522 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 [2019-11-19 20:05:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 20:05:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2019-11-19 20:05:43,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 16 letters. Loop has 5 letters. [2019-11-19 20:05:43,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:43,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 21 letters. Loop has 5 letters. [2019-11-19 20:05:43,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:43,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 16 letters. Loop has 10 letters. [2019-11-19 20:05:43,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:43,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 353 transitions. [2019-11-19 20:05:43,528 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-19 20:05:43,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 274 states and 352 transitions. [2019-11-19 20:05:43,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 132 [2019-11-19 20:05:43,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2019-11-19 20:05:43,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 274 states and 352 transitions. [2019-11-19 20:05:43,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:43,532 INFO L688 BuchiCegarLoop]: Abstraction has 274 states and 352 transitions. [2019-11-19 20:05:43,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states and 352 transitions. [2019-11-19 20:05:43,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 261. [2019-11-19 20:05:43,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-11-19 20:05:43,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 338 transitions. [2019-11-19 20:05:43,542 INFO L711 BuchiCegarLoop]: Abstraction has 261 states and 338 transitions. [2019-11-19 20:05:43,542 INFO L591 BuchiCegarLoop]: Abstraction has 261 states and 338 transitions. [2019-11-19 20:05:43,542 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-19 20:05:43,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 338 transitions. [2019-11-19 20:05:43,544 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-19 20:05:43,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:43,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:43,545 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] [2019-11-19 20:05:43,545 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:05:43,545 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); 4497#L59 assume 2 == ~n;#res := 1; 4496#is_prime_FINAL assume true; 4494#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; 4502#L16 assume ~m < 0; 4426#L17 [2019-11-19 20:05:43,545 INFO L796 eck$LassoCheckResult]: Loop: 4426#L17 call #t~ret0 := mult(~n, -~m);< 4427#multENTRY ~n := #in~n;~m := #in~m; 4503#L16 assume ~m < 0; 4426#L17 [2019-11-19 20:05:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:43,546 INFO L82 PathProgramCache]: Analyzing trace with hash 102279069, now seen corresponding path program 1 times [2019-11-19 20:05:43,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:43,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040807677] [2019-11-19 20:05:43,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:43,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:43,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040807677] [2019-11-19 20:05:43,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:43,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 20:05:43,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180108741] [2019-11-19 20:05:43,585 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:05:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:43,585 INFO L82 PathProgramCache]: Analyzing trace with hash 138194, now seen corresponding path program 2 times [2019-11-19 20:05:43,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:43,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64301607] [2019-11-19 20:05:43,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:43,590 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:43,629 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:43,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:43,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:43,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:43,629 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:43,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:43,629 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:43,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration9_Loop [2019-11-19 20:05:43,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:43,630 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:43,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:43,690 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:43,691 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:43,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:43,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:43,700 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:43,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:43,710 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 [2019-11-19 20:05:43,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:43,715 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:43,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:43,726 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 [2019-11-19 20:05:43,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:43,733 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:43,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:43,745 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:43,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:43,762 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 [2019-11-19 20:05:44,526 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:44,528 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:44,528 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:44,528 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:44,529 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:44,529 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:44,529 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:44,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:44,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:44,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration9_Loop [2019-11-19 20:05:44,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:44,529 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:44,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:44,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:44,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:44,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:44,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:44,598 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:44,598 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:44,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:44,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:44,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:44,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:44,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:44,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:44,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:44,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:44,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:44,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:44,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:44,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:44,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:44,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:44,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:44,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:44,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:44,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:44,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:44,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:44,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:44,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:44,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:44,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:44,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:44,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:44,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:44,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:44,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:44,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:44,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:44,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:44,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:44,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:44,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:44,641 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:44,644 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-19 20:05:44,644 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:44,649 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:44,649 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:44,649 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:44,649 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2019-11-19 20:05:44,652 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 20:05:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:44,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 20:05:44,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:44,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 20:05:44,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:44,760 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 [2019-11-19 20:05:44,760 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 261 states and 338 transitions. cyclomatic complexity: 90 Second operand 5 states. [2019-11-19 20:05:44,859 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. [2019-11-19 20:05:44,860 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 [2019-11-19 20:05:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:05:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2019-11-19 20:05:44,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 21 letters. Loop has 3 letters. [2019-11-19 20:05:44,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:44,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-19 20:05:44,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:44,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 21 letters. Loop has 6 letters. [2019-11-19 20:05:44,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:44,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 384 transitions. [2019-11-19 20:05:44,867 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2019-11-19 20:05:44,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 292 states and 374 transitions. [2019-11-19 20:05:44,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2019-11-19 20:05:44,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2019-11-19 20:05:44,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 292 states and 374 transitions. [2019-11-19 20:05:44,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:44,873 INFO L688 BuchiCegarLoop]: Abstraction has 292 states and 374 transitions. [2019-11-19 20:05:44,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states and 374 transitions. [2019-11-19 20:05:44,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 279. [2019-11-19 20:05:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-11-19 20:05:44,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 360 transitions. [2019-11-19 20:05:44,885 INFO L711 BuchiCegarLoop]: Abstraction has 279 states and 360 transitions. [2019-11-19 20:05:44,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:44,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 20:05:44,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-19 20:05:44,886 INFO L87 Difference]: Start difference. First operand 279 states and 360 transitions. Second operand 6 states. [2019-11-19 20:05:44,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:44,927 INFO L93 Difference]: Finished difference Result 275 states and 351 transitions. [2019-11-19 20:05:44,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 20:05:44,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 351 transitions. [2019-11-19 20:05:44,932 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2019-11-19 20:05:44,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 196 states and 236 transitions. [2019-11-19 20:05:44,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-11-19 20:05:44,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-11-19 20:05:44,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 236 transitions. [2019-11-19 20:05:44,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:44,936 INFO L688 BuchiCegarLoop]: Abstraction has 196 states and 236 transitions. [2019-11-19 20:05:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 236 transitions. [2019-11-19 20:05:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 170. [2019-11-19 20:05:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-11-19 20:05:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 209 transitions. [2019-11-19 20:05:44,943 INFO L711 BuchiCegarLoop]: Abstraction has 170 states and 209 transitions. [2019-11-19 20:05:44,943 INFO L591 BuchiCegarLoop]: Abstraction has 170 states and 209 transitions. [2019-11-19 20:05:44,943 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-19 20:05:44,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 209 transitions. [2019-11-19 20:05:44,945 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-11-19 20:05:44,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:44,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:44,946 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:44,946 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:05:44,947 INFO L794 eck$LassoCheckResult]: Stem: 5667#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet8, main_#t~ret9, main_#t~nondet10, main_#t~nondet11, main_#t~ret12, main_#t~short13, main_~n~0, main_~result~0, main_~f1~0, main_~f2~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 5668#L76 assume !(main_~n~0 < 1 || main_~n~0 > 46340);is_prime_#in~n := main_~n~0;havoc is_prime_#res;havoc is_prime_#t~ret5, is_prime_~n;is_prime_~n := is_prime_#in~n; 5642#L51 call is_prime_#t~ret5 := is_prime_(is_prime_~n, is_prime_~n - 1);< 5655#is_prime_ENTRY ~n := #in~n;~m := #in~m; 5656#L56 assume !(~n <= 1); 5649#L59 assume !(2 == ~n); 5650#L62 assume ~n > 2; 5661#L63 assume !(~m <= 1); 5742#L66 call #t~ret6 := multiple_of(~n, ~m);< 5761#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5758#L30 assume !(~m < 0); 5747#L33 assume !(~n < 0); 5745#L36 assume !(0 == ~m); 5744#L39 assume !(0 == ~n); 5687#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 5738#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5739#L30 assume !(~m < 0); 5764#L33 assume ~n < 0; 5626#L34 call #t~ret3 := multiple_of(-~n, ~m);< 5763#multiple_ofENTRY ~n := #in~n;~m := #in~m; 5679#L30 assume !(~m < 0); 5623#L33 assume !(~n < 0); 5625#L36 [2019-11-19 20:05:44,947 INFO L796 eck$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 [2019-11-19 20:05:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:44,947 INFO L82 PathProgramCache]: Analyzing trace with hash -365122516, now seen corresponding path program 1 times [2019-11-19 20:05:44,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:44,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131088617] [2019-11-19 20:05:44,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:45,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:45,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131088617] [2019-11-19 20:05:45,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803456310] [2019-11-19 20:05:45,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:45,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:05:45,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:45,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:05:45,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-19 20:05:45,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27007648] [2019-11-19 20:05:45,106 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:05:45,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:45,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1367317725, now seen corresponding path program 2 times [2019-11-19 20:05:45,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:45,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734938426] [2019-11-19 20:05:45,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:45,114 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:45,241 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:45,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:45,242 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:45,242 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:45,242 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 20:05:45,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:45,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:45,243 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:45,243 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration10_Loop [2019-11-19 20:05:45,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:45,243 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:45,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:45,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:45,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:45,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:45,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:45,352 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:45,352 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:45,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:45,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 20:05:45,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 20:05:45,417 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:45,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 20:05:45,434 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:05:45,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 20:05:45,458 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,050 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 20:05:48,052 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:05:48,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:05:48,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:05:48,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:05:48,053 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:05:48,053 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:05:48,053 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:05:48,053 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:05:48,053 INFO L133 ssoRankerPreferences]: Filename of dumped script: Primes.c_Iteration10_Loop [2019-11-19 20:05:48,053 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:05:48,053 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:05:48,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:05:48,148 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:05:48,148 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:48,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:05:48,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:05:48,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:05:48,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:05:48,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:05:48,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:05:48,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:05:48,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:05:48,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:05:48,163 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 20:05:48,163 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 20:05:48,166 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:05:48,166 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 20:05:48,166 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:05:48,167 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(multiple_of_~n) = 1*multiple_of_~n Supporting invariants [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Exception during sending of exit command (exit): Broken pipe [2019-11-19 20:05:48,169 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 20:05:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,269 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 20:05:48,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 20:05:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:48,309 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 [2019-11-19 20:05:48,309 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49 Second operand 6 states. [2019-11-19 20:05:48,454 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. [2019-11-19 20:05:48,455 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 [2019-11-19 20:05:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 20:05:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-19 20:05:48,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-19 20:05:48,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:48,456 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 20:05:48,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 20:05:48,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 20:05:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:48,578 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 [2019-11-19 20:05:48,578 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49 Second operand 6 states. [2019-11-19 20:05:48,720 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. [2019-11-19 20:05:48,721 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 [2019-11-19 20:05:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 20:05:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2019-11-19 20:05:48,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-19 20:05:48,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:48,722 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 20:05:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:48,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:05:48,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:05:48,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 20:05:48,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 20:05:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:48,825 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 [2019-11-19 20:05:48,825 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 170 states and 209 transitions. cyclomatic complexity: 49 Second operand 6 states. [2019-11-19 20:05:48,997 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. [2019-11-19 20:05:48,997 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 [2019-11-19 20:05:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-19 20:05:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2019-11-19 20:05:48,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 22 letters. Loop has 6 letters. [2019-11-19 20:05:48,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:48,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 28 letters. Loop has 6 letters. [2019-11-19 20:05:48,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:48,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 22 letters. Loop has 12 letters. [2019-11-19 20:05:48,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:05:48,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 265 states and 319 transitions. [2019-11-19 20:05:49,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2019-11-19 20:05:49,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 265 states to 223 states and 270 transitions. [2019-11-19 20:05:49,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-19 20:05:49,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2019-11-19 20:05:49,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 270 transitions. [2019-11-19 20:05:49,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:49,006 INFO L688 BuchiCegarLoop]: Abstraction has 223 states and 270 transitions. [2019-11-19 20:05:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 270 transitions. [2019-11-19 20:05:49,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 182. [2019-11-19 20:05:49,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-19 20:05:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 226 transitions. [2019-11-19 20:05:49,012 INFO L711 BuchiCegarLoop]: Abstraction has 182 states and 226 transitions. [2019-11-19 20:05:49,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:49,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 20:05:49,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-19 20:05:49,012 INFO L87 Difference]: Start difference. First operand 182 states and 226 transitions. Second operand 8 states. [2019-11-19 20:05:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:49,143 INFO L93 Difference]: Finished difference Result 243 states and 299 transitions. [2019-11-19 20:05:49,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 20:05:49,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 299 transitions. [2019-11-19 20:05:49,147 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2019-11-19 20:05:49,150 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 233 states and 289 transitions. [2019-11-19 20:05:49,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2019-11-19 20:05:49,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2019-11-19 20:05:49,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 289 transitions. [2019-11-19 20:05:49,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:05:49,150 INFO L688 BuchiCegarLoop]: Abstraction has 233 states and 289 transitions. [2019-11-19 20:05:49,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 289 transitions. [2019-11-19 20:05:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 212. [2019-11-19 20:05:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-11-19 20:05:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 266 transitions. [2019-11-19 20:05:49,157 INFO L711 BuchiCegarLoop]: Abstraction has 212 states and 266 transitions. [2019-11-19 20:05:49,157 INFO L591 BuchiCegarLoop]: Abstraction has 212 states and 266 transitions. [2019-11-19 20:05:49,158 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-19 20:05:49,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 266 transitions. [2019-11-19 20:05:49,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2019-11-19 20:05:49,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:49,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:49,160 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:49,160 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:49,160 INFO L794 eck$LassoCheckResult]: Stem: 7339#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; 7340#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); 7346#L59 assume !(2 == ~n); 7331#L62 assume ~n > 2; 7332#L63 assume !(~m <= 1); 7351#L66 call #t~ret6 := multiple_of(~n, ~m);< 7352#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7402#L30 assume !(~m < 0); 7401#L33 assume !(~n < 0); 7400#L36 assume !(0 == ~m); 7385#L39 assume !(0 == ~n); 7378#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 7394#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7393#L30 assume !(~m < 0); 7392#L33 assume !(~n < 0); 7384#L36 assume !(0 == ~m); 7381#L39 assume !(0 == ~n); 7368#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 7377#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7376#L30 assume !(~m < 0); 7367#L33 assume ~n < 0; 7294#L34 call #t~ret3 := multiple_of(-~n, ~m);< 7372#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7371#L30 assume !(~m < 0); 7292#L33 assume !(~n < 0); 7295#L36 [2019-11-19 20:05:49,160 INFO L796 eck$LassoCheckResult]: Loop: 7295#L36 assume !(0 == ~m); 7335#L39 assume !(0 == ~n); 7313#L42 call #t~ret4 := multiple_of(~n - ~m, ~m);< 7357#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7395#L30 assume !(~m < 0); 7373#L33 assume ~n < 0; 7312#L34 call #t~ret3 := multiple_of(-~n, ~m);< 7314#multiple_ofENTRY ~n := #in~n;~m := #in~m; 7374#L30 assume !(~m < 0); 7375#L33 assume !(~n < 0); 7295#L36 [2019-11-19 20:05:49,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:49,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1641835528, now seen corresponding path program 2 times [2019-11-19 20:05:49,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:49,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190770942] [2019-11-19 20:05:49,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:49,193 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:49,195 INFO L82 PathProgramCache]: Analyzing trace with hash 478329012, now seen corresponding path program 1 times [2019-11-19 20:05:49,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:49,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770059001] [2019-11-19 20:05:49,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:49,206 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:49,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1762199547, now seen corresponding path program 3 times [2019-11-19 20:05:49,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:49,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474179719] [2019-11-19 20:05:49,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:49,236 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:50,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:05:50 BoogieIcfgContainer [2019-11-19 20:05:50,010 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:05:50,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:05:50,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:05:50,010 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:05:50,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:34" (3/4) ... [2019-11-19 20:05:50,014 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:05:50,062 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:05:50,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:05:50,065 INFO L168 Benchmark]: Toolchain (without parser) took 16613.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.2 MB). Free memory was 960.4 MB in the beginning and 980.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 296.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,065 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:05:50,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,069 INFO L168 Benchmark]: Boogie Preprocessor took 22.40 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,069 INFO L168 Benchmark]: RCFGBuilder took 406.31 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,070 INFO L168 Benchmark]: BuchiAutomizer took 15743.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.8 MB). Free memory was 1.1 GB in the beginning and 988.4 MB in the end (delta: 107.7 MB). Peak memory consumption was 298.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,070 INFO L168 Benchmark]: Witness Printer took 52.49 ms. Allocated memory is still 1.3 GB. Free memory was 988.4 MB in the beginning and 980.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:50,073 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.31 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.40 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 406.31 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15743.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 190.8 MB). Free memory was 1.1 GB in the beginning and 988.4 MB in the end (delta: 107.7 MB). Peak memory consumption was 298.5 MB. Max. memory is 11.5 GB. * Witness Printer took 52.49 ms. Allocated memory is still 1.3 GB. Free memory was 988.4 MB in the beginning and 980.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 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 15.6s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 11.5s. Construction of modules took 1.0s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 14. Automata minimization 0.1s 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, 1.0s 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: 20ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.5s - 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@11c37882=0, \result=0, f1=0, m=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a4fecb2=0, n=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f764c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@191eccac=0, result=0, f2=0, m=2, n=1, \result=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d2ebf4c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a024940=0, \old(n)=1, \old(m)=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16f4a6f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58e083d1=0, n=0, \old(n)=0, \result=0, \old(m)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f57cf84=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ab1aa29=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2da0a87f=0, \old(n)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@6131eec0=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...