./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Collatz.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/termination-crafted/Collatz.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 873a06533d36987711ab5e2c177066aa117a2df5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:32:34,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:32:34,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:32:34,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:32:34,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:32:34,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:32:34,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:32:34,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:32:34,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:32:34,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:32:34,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:32:34,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:32:34,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:32:34,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:32:34,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:32:34,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:32:34,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:32:34,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:32:34,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:32:34,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:32:34,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:32:34,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:32:34,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:32:34,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:32:34,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:32:34,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:32:34,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:32:34,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:32:34,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:32:34,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:32:34,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:32:34,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:32:34,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:32:34,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:32:34,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:32:34,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:32:34,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:32:34,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:32:34,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:32:34,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:32:34,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:32:34,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:32:34,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:32:34,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:32:34,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:32:34,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:32:34,224 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:32:34,224 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:32:34,224 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:32:34,225 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:32:34,225 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:32:34,225 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:32:34,225 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:32:34,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:32:34,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:32:34,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:32:34,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:32:34,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:32:34,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:32:34,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:32:34,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:32:34,228 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:32:34,228 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:32:34,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:32:34,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:32:34,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:32:34,229 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:32:34,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:32:34,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:32:34,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:32:34,230 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:32:34,231 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:32:34,231 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 873a06533d36987711ab5e2c177066aa117a2df5 [2020-10-20 06:32:34,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:32:34,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:32:34,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:32:34,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:32:34,484 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:32:34,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Collatz.c [2020-10-20 06:32:34,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59056585/cd1d038289094e6fbde0ea48b194fbb5/FLAG796e7b1a5 [2020-10-20 06:32:34,972 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:32:34,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz.c [2020-10-20 06:32:34,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59056585/cd1d038289094e6fbde0ea48b194fbb5/FLAG796e7b1a5 [2020-10-20 06:32:35,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e59056585/cd1d038289094e6fbde0ea48b194fbb5 [2020-10-20 06:32:35,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:32:35,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:32:35,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:32:35,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:32:35,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:32:35,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34232cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35, skipping insertion in model container [2020-10-20 06:32:35,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:32:35,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:32:35,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:32:35,606 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:32:35,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:32:35,633 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:32:35,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35 WrapperNode [2020-10-20 06:32:35,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:32:35,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:32:35,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:32:35,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:32:35,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:32:35,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:32:35,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:32:35,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:32:35,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (1/1) ... [2020-10-20 06:32:35,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:32:35,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:32:35,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:32:35,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:32:35,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (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 [2020-10-20 06:32:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:32:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:32:35,917 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:32:35,917 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:32:35,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:32:35 BoogieIcfgContainer [2020-10-20 06:32:35,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:32:35,921 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:32:35,921 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:32:35,926 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:32:35,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:32:35,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:32:35" (1/3) ... [2020-10-20 06:32:35,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@774548c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:32:35, skipping insertion in model container [2020-10-20 06:32:35,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:32:35,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:32:35" (2/3) ... [2020-10-20 06:32:35,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@774548c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:32:35, skipping insertion in model container [2020-10-20 06:32:35,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:32:35,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:32:35" (3/3) ... [2020-10-20 06:32:35,939 INFO L373 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2020-10-20 06:32:35,989 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:32:35,989 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:32:35,989 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:32:35,989 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:32:35,990 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:32:35,990 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:32:35,990 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:32:35,990 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:32:36,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-20 06:32:36,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:32:36,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:32:36,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:32:36,030 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:32:36,030 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:32:36,030 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:32:36,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-20 06:32:36,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:32:36,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:32:36,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:32:36,032 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:32:36,032 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:32:36,039 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L14-2true [2020-10-20 06:32:36,039 INFO L796 eck$LassoCheckResult]: Loop: 5#L14-2true assume !!(main_~y~0 > 1); 8#L14true assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 5#L14-2true [2020-10-20 06:32:36,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:36,045 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:32:36,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:36,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922552399] [2020-10-20 06:32:36,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:36,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:36,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:36,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:36,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:36,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-10-20 06:32:36,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:36,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568219667] [2020-10-20 06:32:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:36,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:36,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:36,183 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:36,184 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-10-20 06:32:36,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:36,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928736669] [2020-10-20 06:32:36,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:36,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:36,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:36,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:36,343 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:36,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:36,345 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:36,345 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:36,345 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:36,346 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:36,346 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:36,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:36,347 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2020-10-20 06:32:36,347 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:36,347 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:36,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:36,502 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:36,503 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:36,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:36,516 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:36,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:32:36,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:32:36,607 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:36,609 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:36,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:36,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:36,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:36,610 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:36,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:36,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:36,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:36,611 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2020-10-20 06:32:36,611 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:36,611 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:36,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:36,699 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:36,705 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:32:36,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:36,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:36,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:36,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:36,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:36,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:36,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:36,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:36,733 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:32:36,742 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:32:36,742 INFO L444 ModelExtractionUtils]: 0 out of 3 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:36,753 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:32:36,753 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:32:36,754 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:32:36,755 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-10-20 06:32:36,786 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:32:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:36,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:32:36,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:36,869 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:32:36,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:36,913 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:32:36,915 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-10-20 06:32:36,972 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2020-10-20 06:32:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:32:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:32:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-10-20 06:32:36,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-20 06:32:36,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:36,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-20 06:32:36,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:36,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-10-20 06:32:36,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:36,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-10-20 06:32:36,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:32:36,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-20 06:32:36,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-10-20 06:32:36,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-20 06:32:36,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-20 06:32:36,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:32:36,993 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:32:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-20 06:32:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-20 06:32:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:32:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-10-20 06:32:37,023 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:32:37,023 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:32:37,023 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:32:37,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-10-20 06:32:37,024 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:32:37,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:32:37,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:32:37,025 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-20 06:32:37,026 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:32:37,026 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L14-2 assume !!(main_~y~0 > 1); 73#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 69#L14-2 [2020-10-20 06:32:37,026 INFO L796 eck$LassoCheckResult]: Loop: 69#L14-2 assume !!(main_~y~0 > 1); 70#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 69#L14-2 [2020-10-20 06:32:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:37,027 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2020-10-20 06:32:37,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:37,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677928801] [2020-10-20 06:32:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:37,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:37,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2020-10-20 06:32:37,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:37,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535094232] [2020-10-20 06:32:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,067 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:37,068 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2020-10-20 06:32:37,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:37,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042265426] [2020-10-20 06:32:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,095 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:37,157 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:37,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:37,157 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:37,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:37,158 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:37,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:37,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:37,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:37,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2020-10-20 06:32:37,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:37,159 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:37,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:37,222 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:37,222 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 06:32:37,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:37,235 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 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) [2020-10-20 06:32:37,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:32:37,292 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 [2020-10-20 06:32:37,360 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:37,362 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:37,362 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:37,362 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:37,362 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:37,362 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:37,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:37,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:37,363 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:37,363 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2020-10-20 06:32:37,363 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:37,363 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:37,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:37,433 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:37,433 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 06:32:37,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:37,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:37,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:37,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:37,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:37,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:37,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:37,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:37,457 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:32:37,464 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:32:37,464 INFO L444 ModelExtractionUtils]: 0 out of 3 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:37,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:32:37,472 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:32:37,472 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:32:37,472 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-10-20 06:32:37,504 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:32:37,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:37,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:32:37,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:37,544 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:32:37,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:37,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:37,566 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:32:37,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-20 06:32:37,586 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2020-10-20 06:32:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:32:37,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:32:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-10-20 06:32:37,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-20 06:32:37,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:37,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 06:32:37,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:37,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-20 06:32:37,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:37,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-10-20 06:32:37,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:32:37,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2020-10-20 06:32:37,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-20 06:32:37,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-20 06:32:37,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2020-10-20 06:32:37,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:32:37,594 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-10-20 06:32:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2020-10-20 06:32:37,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-20 06:32:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-20 06:32:37,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-10-20 06:32:37,597 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-10-20 06:32:37,597 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-10-20 06:32:37,597 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:32:37,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-10-20 06:32:37,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 06:32:37,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:32:37,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:32:37,599 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2020-10-20 06:32:37,599 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 06:32:37,600 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 122#L14-2 assume !!(main_~y~0 > 1); 127#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 128#L14-2 assume !!(main_~y~0 > 1); 129#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 123#L14-2 [2020-10-20 06:32:37,600 INFO L796 eck$LassoCheckResult]: Loop: 123#L14-2 assume !!(main_~y~0 > 1); 124#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 123#L14-2 [2020-10-20 06:32:37,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:37,600 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2020-10-20 06:32:37,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:37,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921879771] [2020-10-20 06:32:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:37,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921879771] [2020-10-20 06:32:37,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258608885] [2020-10-20 06:32:37,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:32:37,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:32:37,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:32:37,753 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:32:37,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:37,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:32:37,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 06:32:37,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655090021] [2020-10-20 06:32:37,834 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:32:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:37,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2020-10-20 06:32:37,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:37,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472438628] [2020-10-20 06:32:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:37,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:37,848 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:37,888 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:37,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:37,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:37,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:37,889 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:37,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:37,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:37,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:37,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2020-10-20 06:32:37,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:37,890 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:37,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:37,961 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:37,961 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 06:32:37,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:37,974 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:38,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:32:38,030 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,082 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:38,084 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:38,084 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:38,084 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:38,084 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:38,084 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:38,084 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,084 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:38,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:38,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2020-10-20 06:32:38,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:38,085 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:38,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:38,137 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:38,137 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:38,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:38,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:38,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:38,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:38,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:38,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:38,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:38,155 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:32:38,159 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:32:38,159 INFO L444 ModelExtractionUtils]: 0 out of 3 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:38,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:32:38,170 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:32:38,170 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:32:38,170 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,203 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:32:38,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:38,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:32:38,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:38,228 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:32:38,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:38,239 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:32:38,239 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-20 06:32:38,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2020-10-20 06:32:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:32:38,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:32:38,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-10-20 06:32:38,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 06:32:38,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:38,309 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:32:38,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:38,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:32:38,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:38,345 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:32:38,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:38,357 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:32:38,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-20 06:32:38,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2020-10-20 06:32:38,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:32:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:32:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-10-20 06:32:38,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 06:32:38,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:38,376 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:32:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:38,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:32:38,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:32:38,409 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:32:38,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:32:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:32:38,420 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 2 loop predicates [2020-10-20 06:32:38,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-20 06:32:38,436 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2020-10-20 06:32:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:32:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:32:38,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-10-20 06:32:38,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-20 06:32:38,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:38,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-20 06:32:38,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:38,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-20 06:32:38,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:32:38,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2020-10-20 06:32:38,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:32:38,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2020-10-20 06:32:38,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-20 06:32:38,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-20 06:32:38,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2020-10-20 06:32:38,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:32:38,443 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-10-20 06:32:38,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2020-10-20 06:32:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2020-10-20 06:32:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:32:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-10-20 06:32:38,447 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-10-20 06:32:38,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:32:38,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:32:38,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:32:38,452 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 4 states. [2020-10-20 06:32:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:32:38,481 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2020-10-20 06:32:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:32:38,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2020-10-20 06:32:38,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:32:38,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2020-10-20 06:32:38,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-10-20 06:32:38,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-20 06:32:38,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-10-20 06:32:38,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:32:38,485 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-20 06:32:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-10-20 06:32:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2020-10-20 06:32:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:32:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-10-20 06:32:38,486 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-20 06:32:38,487 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-20 06:32:38,487 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:32:38,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-10-20 06:32:38,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:32:38,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:32:38,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:32:38,488 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:32:38,488 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-10-20 06:32:38,488 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 296#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-20 06:32:38,488 INFO L796 eck$LassoCheckResult]: Loop: 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-20 06:32:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:32:38,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:38,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650767181] [2020-10-20 06:32:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:38,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:38,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:38,503 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:38,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:38,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2020-10-20 06:32:38,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:38,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057827009] [2020-10-20 06:32:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:38,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:38,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:38,557 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:38,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:38,561 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2020-10-20 06:32:38,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:38,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533958860] [2020-10-20 06:32:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:38,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:38,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:38,606 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:38,699 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:38,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:38,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:38,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:38,699 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:38,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:38,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:38,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-20 06:32:38,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:38,700 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:38,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:38,813 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:38,813 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:38,818 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2020-10-20 06:32:38,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:32:38,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:38,974 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:38,974 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:38,974 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:38,974 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:38,975 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:38,975 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:38,975 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:38,975 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:38,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-20 06:32:38,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:38,975 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:38,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,057 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:39,058 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:32:39,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:39,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:39,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:39,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,099 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:39,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,103 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:39,106 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:39,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:39,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,146 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:39,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,161 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:39,165 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:39,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:39,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,197 INFO L489 LassoAnalysis]: Using template '4-nested'. 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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:39,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,203 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:39,207 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:39,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:39,213 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,245 INFO L489 LassoAnalysis]: Using template '2-phase'. 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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,255 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:39,256 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:39,256 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,256 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:39,260 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:39,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:39,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,305 INFO L489 LassoAnalysis]: Using template '3-phase'. 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) [2020-10-20 06:32:39,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,323 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:39,323 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:39,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,324 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:39,329 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:39,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,378 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,385 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:39,386 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:39,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,386 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:39,392 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:39,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:39,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,458 INFO L489 LassoAnalysis]: Using template '2-lex'. 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) [2020-10-20 06:32:39,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,464 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:39,464 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:39,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:39,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,465 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:39,468 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:39,468 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 [2020-10-20 06:32:39,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,511 INFO L489 LassoAnalysis]: Using template '3-lex'. 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) [2020-10-20 06:32:39,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,516 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:39,516 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:39,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,517 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:39,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:39,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:39,533 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:39,579 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:39,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:39,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:39,579 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:39,580 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:39,580 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,580 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:39,580 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:39,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-20 06:32:39,581 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:39,581 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:39,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,679 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:39,679 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) [2020-10-20 06:32:39,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:39,688 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:32:39,693 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=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) [2020-10-20 06:32:39,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:39,729 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 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) [2020-10-20 06:32:39,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:32:39,772 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,854 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:39,856 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:39,856 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:39,856 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:39,856 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:39,856 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:39,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,856 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:39,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:39,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-20 06:32:39,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:39,857 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:39,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:39,957 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:39,957 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:32:39,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:39,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:39,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:39,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:39,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:39,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:39,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:39,984 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:40,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:40,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:40,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,028 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:40,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:40,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:40,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,075 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:40,116 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) [2020-10-20 06:32:40,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,123 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:40,130 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-20 06:32:40,130 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,140 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:40,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,179 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:40,179 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:40,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,181 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:40,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,222 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:40,224 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:40,225 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 [2020-10-20 06:32:40,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:40,262 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) [2020-10-20 06:32:40,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,268 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:40,277 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:32:40,278 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,312 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) [2020-10-20 06:32:40,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,358 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:40,358 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:40,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,361 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) [2020-10-20 06:32:40,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,400 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:40,401 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:40,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,404 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:40,442 INFO L489 LassoAnalysis]: Using template '4-nested'. 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) [2020-10-20 06:32:40,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,448 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:40,456 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-20 06:32:40,456 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,472 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) [2020-10-20 06:32:40,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,512 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:40,513 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:40,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,515 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) [2020-10-20 06:32:40,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:40,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,553 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:40,554 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:40,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:40,589 INFO L489 LassoAnalysis]: Using template '2-phase'. 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) [2020-10-20 06:32:40,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,595 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,596 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:40,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,596 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:40,602 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-20 06:32:40,602 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-20 06:32:40,621 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 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 [2020-10-20 06:32:40,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,655 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,655 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:40,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,656 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:40,661 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:40,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:40,671 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 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 [2020-10-20 06:32:40,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,700 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,701 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:40,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,701 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:40,702 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:40,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:40,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:40,729 INFO L489 LassoAnalysis]: Using template '3-phase'. 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 [2020-10-20 06:32:40,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,733 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,733 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:40,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,733 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:40,741 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:32:40,741 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 06:32:40,765 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 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 [2020-10-20 06:32:40,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,788 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,789 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:40,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,789 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:40,791 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:40,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:40,794 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 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 [2020-10-20 06:32:40,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,818 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,818 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:40,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,818 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:40,819 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:40,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:40,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:40,853 INFO L489 LassoAnalysis]: Using template '4-phase'. 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 [2020-10-20 06:32:40,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,856 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,857 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:40,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,857 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:40,867 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-20 06:32:40,867 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-10-20 06:32:40,906 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 [2020-10-20 06:32:40,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,937 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,937 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:40,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,937 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:40,938 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:40,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:40,942 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 [2020-10-20 06:32:40,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:40,966 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:40,967 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:40,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:40,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:40,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:40,967 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:40,968 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:40,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:40,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,001 INFO L489 LassoAnalysis]: Using template '2-lex'. 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 [2020-10-20 06:32:41,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,004 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,004 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:41,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,005 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:41,010 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:32:41,011 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 06:32:41,032 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,055 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,055 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:41,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,056 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:41,057 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:41,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,059 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,083 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,083 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:41,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,084 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:41,084 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:41,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,106 INFO L489 LassoAnalysis]: Using template '3-lex'. 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 [2020-10-20 06:32:41,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,110 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,110 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:41,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,110 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:41,119 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-10-20 06:32:41,119 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-10-20 06:32:41,144 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,168 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,168 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:41,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,168 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:41,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:41,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,178 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,206 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,206 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:41,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,206 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:41,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:41,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,231 INFO L473 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2020-10-20 06:32:41,231 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 296#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-20 06:32:41,231 INFO L796 eck$LassoCheckResult]: Loop: 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-20 06:32:41,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:41,232 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2020-10-20 06:32:41,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:41,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045179597] [2020-10-20 06:32:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:41,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:41,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:41,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:41,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:41,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2020-10-20 06:32:41,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:41,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413950625] [2020-10-20 06:32:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:41,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:41,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:41,275 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:41,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:32:41,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2020-10-20 06:32:41,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:32:41,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284303522] [2020-10-20 06:32:41,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:32:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:41,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:32:41,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:32:41,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:32:41,399 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:41,400 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:41,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:41,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:41,400 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:41,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,401 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:41,401 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:41,401 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-20 06:32:41,401 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:41,401 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:41,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:41,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:41,472 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 06:32:41,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:41,483 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 56 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 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 [2020-10-20 06:32:41,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:32:41,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:32:41,612 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:41,614 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:41,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:41,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:41,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:41,614 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:41,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:41,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:41,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-20 06:32:41,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:41,615 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:41,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:41,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:41,704 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:32:41,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:41,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:41,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:41,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,758 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) [2020-10-20 06:32:41,760 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:41,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,762 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:41,764 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:41,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,788 INFO L489 LassoAnalysis]: Using template '3-nested'. 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 [2020-10-20 06:32:41,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:41,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,792 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:41,794 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:41,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,820 INFO L489 LassoAnalysis]: Using template '4-nested'. 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 [2020-10-20 06:32:41,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:41,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,824 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:41,827 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:41,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:41,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,869 INFO L489 LassoAnalysis]: Using template '2-phase'. 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) [2020-10-20 06:32:41,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,877 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,877 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:41,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,878 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:41,880 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:41,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,923 INFO L489 LassoAnalysis]: Using template '3-phase'. 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) [2020-10-20 06:32:41,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,929 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,930 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:41,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,930 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:41,933 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:41,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:41,981 INFO L489 LassoAnalysis]: Using template '4-phase'. 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) [2020-10-20 06:32:41,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:41,992 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:41,992 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:41,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:41,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:41,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:41,992 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:41,996 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:41,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:42,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:42,034 INFO L489 LassoAnalysis]: Using template '2-lex'. 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 [2020-10-20 06:32:42,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:42,037 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:42,037 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:42,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:42,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:42,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:42,038 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:42,039 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:42,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:42,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:42,066 INFO L489 LassoAnalysis]: Using template '3-lex'. 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 [2020-10-20 06:32:42,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:42,069 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:42,069 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:42,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:42,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:42,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:42,070 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:42,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:42,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:42,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:42,151 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 06:32:42,172 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,178 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:32:42,212 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:32:42,224 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:32:42,237 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:32:42,255 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,264 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,325 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,344 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:32:42,364 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 06:32:42,379 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,388 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:32:42,398 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,401 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-20 06:32:42,446 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:42,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:42,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:42,446 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:42,446 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:32:42,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:42,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:42,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-20 06:32:42,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:42,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:42,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:42,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:42,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:42,575 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:42,575 INFO L404 LassoAnalysis]: Checking for nontermination... 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) [2020-10-20 06:32:42,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:42,578 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,583 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:32:42,583 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-20 06:32:42,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:42,622 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:32:42,626 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=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) [2020-10-20 06:32:42,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:32:42,661 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 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) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:32:42,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:32:42,758 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:32:42,759 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:32:42,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:32:42,760 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:32:42,760 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:32:42,760 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:32:42,760 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,760 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:32:42,760 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:32:42,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-20 06:32:42,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:32:42,760 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:32:42,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:42,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:42,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:32:42,870 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:32:42,871 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 06:32:42,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:42,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:42,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:42,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:42,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:42,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:42,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:42,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:42,883 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:42,917 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 [2020-10-20 06:32:42,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:42,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:42,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:42,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:42,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:42,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,931 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:42,967 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:42,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:42,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:42,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:42,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:42,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:32:42,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:32:42,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:42,971 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:42,991 INFO L489 LassoAnalysis]: Using template '2-nested'. 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 [2020-10-20 06:32:42,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:42,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:42,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:42,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:42,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:42,994 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:42,995 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:42,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:42,996 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 [2020-10-20 06:32:43,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,020 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:43,025 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-20 06:32:43,025 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-20 06:32:43,037 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) [2020-10-20 06:32:43,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,076 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:43,077 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:43,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:43,129 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) [2020-10-20 06:32:43,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,137 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,138 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:43,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,142 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,192 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,203 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:32:43,203 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,223 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,280 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,281 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:43,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,284 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:43,323 INFO L489 LassoAnalysis]: Using template '4-nested'. 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) [2020-10-20 06:32:43,327 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 [2020-10-20 06:32:43,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,330 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:43,331 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:43,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,333 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,377 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:43,386 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-20 06:32:43,386 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,420 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:32:43,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,459 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:43,460 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:43,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:43,496 INFO L489 LassoAnalysis]: Using template '2-phase'. 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) [2020-10-20 06:32:43,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,502 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,502 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:43,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,502 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:43,503 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:43,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,511 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,550 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,550 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:43,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,551 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:43,557 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-20 06:32:43,557 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,579 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,617 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 [2020-10-20 06:32:43,619 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,619 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:43,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,620 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-20 06:32:43,620 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-20 06:32:43,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,623 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:43,648 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,652 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,652 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:43,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,653 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,653 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:43,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:43,656 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 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,680 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,680 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:43,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,681 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,687 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:32:43,687 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 06:32:43,717 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,738 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,740 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,740 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-20 06:32:43,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,741 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,742 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:43,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:43,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:43,765 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,768 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,769 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:43,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,769 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:43,770 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:43,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:32:43,774 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 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,798 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,798 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:43,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,798 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:43,812 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-20 06:32:43,813 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-10-20 06:32:43,870 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,915 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,915 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:43,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,916 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-20 06:32:43,917 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-20 06:32:43,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:43,970 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:43,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:43,975 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:43,975 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:43,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:43,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:43,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:43,976 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:43,977 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:43,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:43,979 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:44,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:44,032 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:44,033 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:44,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:44,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:44,033 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:44,059 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 06:32:44,059 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 06:32:44,082 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:44,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:44,125 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:44,125 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-20 06:32:44,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:44,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:44,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:44,126 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-20 06:32:44,126 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:32:44,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:44,130 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:44,166 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:44,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:44,171 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:44,171 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:44,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:44,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:44,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:44,172 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:44,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:44,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:44,177 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:44,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:44,215 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:44,215 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:44,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:44,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:44,216 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:44,225 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-10-20 06:32:44,225 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:44,262 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:32:44,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:32:44,301 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-20 06:32:44,301 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-20 06:32:44,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:32:44,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:32:44,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:32:44,302 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-20 06:32:44,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:32:44,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:32:44,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-20 06:32:44,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:32:44 BoogieIcfgContainer [2020-10-20 06:32:44,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:32:44,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:32:44,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:32:44,350 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:32:44,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:32:35" (3/4) ... [2020-10-20 06:32:44,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:32:44,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:32:44,357 INFO L168 Benchmark]: Toolchain (without parser) took 9044.16 ms. Allocated memory was 35.7 MB in the beginning and 68.2 MB in the end (delta: 32.5 MB). Free memory was 13.8 MB in the beginning and 27.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,358 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 34.1 MB. Free memory was 19.3 MB in the beginning and 19.3 MB in the end (delta: 29.7 kB). Peak memory consumption was 29.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.69 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 13.0 MB in the beginning and 26.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.76 ms. Allocated memory is still 44.0 MB. Free memory was 26.2 MB in the beginning and 24.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,359 INFO L168 Benchmark]: Boogie Preprocessor took 22.11 ms. Allocated memory is still 44.0 MB. Free memory was 24.6 MB in the beginning and 23.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,360 INFO L168 Benchmark]: RCFGBuilder took 227.11 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 15.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,361 INFO L168 Benchmark]: BuchiAutomizer took 8428.37 ms. Allocated memory was 44.0 MB in the beginning and 68.2 MB in the end (delta: 24.1 MB). Free memory was 14.9 MB in the beginning and 28.4 MB in the end (delta: -13.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,361 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 68.2 MB. Free memory was 28.4 MB in the beginning and 27.8 MB in the end (delta: 686.3 kB). Peak memory consumption was 686.3 kB. Max. memory is 14.3 GB. [2020-10-20 06:32:44,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 34.1 MB. Free memory was 19.3 MB in the beginning and 19.3 MB in the end (delta: 29.7 kB). Peak memory consumption was 29.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 316.69 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 13.0 MB in the beginning and 26.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 34.76 ms. Allocated memory is still 44.0 MB. Free memory was 26.2 MB in the beginning and 24.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.11 ms. Allocated memory is still 44.0 MB. Free memory was 24.6 MB in the beginning and 23.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 227.11 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 15.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 8428.37 ms. Allocated memory was 44.0 MB in the beginning and 68.2 MB in the end (delta: 24.1 MB). Free memory was 14.9 MB in the beginning and 28.4 MB in the end (delta: -13.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 14.3 GB. * Witness Printer took 5.07 ms. Allocated memory is still 68.2 MB. Free memory was 28.4 MB in the beginning and 27.8 MB in the end (delta: 686.3 kB). Peak memory consumption was 686.3 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 7.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 46 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn1 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div547 bol100 ite100 ukn100 eq124 hnf40 smp69 dnf100 smp100 tf105 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 51ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer is unable to decide termination for the following lasso. Stem: "havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;" "assume !!(main_~y~0 > 1);" "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" Loop: "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" RESULT: Ultimate could not prove your program: unable to determine termination Received shutdown request...