./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Pure3Phase-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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/Pure3Phase-1.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 0f9d895409a2f54503956d21ebe5c7ca9bb4de08 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:14:26,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:14:26,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:14:26,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:14:26,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:14:26,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:14:26,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:14:26,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:14:26,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:14:26,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:14:26,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:14:26,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:14:26,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:14:26,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:14:26,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:14:26,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:14:26,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:14:26,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:14:26,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:14:26,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:14:26,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:14:26,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:14:26,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:14:26,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:14:26,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:14:26,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:14:26,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:14:26,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:14:26,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:14:26,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:14:26,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:14:26,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:14:26,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:14:26,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:14:26,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:14:26,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:14:26,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:14:26,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:14:26,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:14:26,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:14:26,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:14:26,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:14:26,309 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:14:26,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:14:26,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:14:26,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:14:26,312 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:14:26,312 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:14:26,312 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:14:26,312 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:14:26,313 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:14:26,313 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:14:26,313 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:14:26,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:14:26,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:14:26,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:14:26,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:14:26,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:14:26,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:14:26,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:14:26,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:14:26,315 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:14:26,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:14:26,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:14:26,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:14:26,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:14:26,316 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:14:26,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:14:26,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:14:26,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:14:26,317 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:14:26,318 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:14:26,319 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f9d895409a2f54503956d21ebe5c7ca9bb4de08 [2020-10-26 04:14:26,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:14:26,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:14:26,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:14:26,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:14:26,786 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:14:26,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Pure3Phase-1.c [2020-10-26 04:14:26,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428b3cfb4/69458b80eb634a0abde438ad92731b4b/FLAGeb3b1c6b7 [2020-10-26 04:14:27,366 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:14:27,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Pure3Phase-1.c [2020-10-26 04:14:27,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428b3cfb4/69458b80eb634a0abde438ad92731b4b/FLAGeb3b1c6b7 [2020-10-26 04:14:27,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/428b3cfb4/69458b80eb634a0abde438ad92731b4b [2020-10-26 04:14:27,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:14:27,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:14:27,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:14:27,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:14:27,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:14:27,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:14:27" (1/1) ... [2020-10-26 04:14:27,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300bb2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:27, skipping insertion in model container [2020-10-26 04:14:27,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:14:27" (1/1) ... [2020-10-26 04:14:27,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:14:27,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:14:28,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:14:28,021 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:14:28,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:14:28,055 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:14:28,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28 WrapperNode [2020-10-26 04:14:28,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:14:28,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:14:28,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:14:28,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:14:28,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:14:28,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:14:28,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:14:28,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:14:28,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (1/1) ... [2020-10-26 04:14:28,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:14:28,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:14:28,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:14:28,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:14:28,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (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 [2020-10-26 04:14:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:14:28,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:14:28,392 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:14:28,392 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:14:28,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:14:28 BoogieIcfgContainer [2020-10-26 04:14:28,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:14:28,395 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:14:28,395 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:14:28,402 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:14:28,403 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:14:28,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:14:27" (1/3) ... [2020-10-26 04:14:28,415 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22cc20e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:14:28, skipping insertion in model container [2020-10-26 04:14:28,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:14:28,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:14:28" (2/3) ... [2020-10-26 04:14:28,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22cc20e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:14:28, skipping insertion in model container [2020-10-26 04:14:28,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:14:28,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:14:28" (3/3) ... [2020-10-26 04:14:28,418 INFO L373 chiAutomizerObserver]: Analyzing ICFG Pure3Phase-1.c [2020-10-26 04:14:28,506 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:14:28,506 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:14:28,506 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:14:28,507 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:14:28,507 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:14:28,507 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:14:28,507 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:14:28,507 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:14:28,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:14:28,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:14:28,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:14:28,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:14:28,544 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:14:28,544 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:14:28,544 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:14:28,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:14:28,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:14:28,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:14:28,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:14:28,546 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-26 04:14:28,546 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:14:28,552 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L24true assume !!(main_~x~0 <= 65535); 11#L25true assume !!(-65535 <= main_~y~0 && main_~y~0 <= 65535); 3#L26true assume !!(-65535 <= main_~z~0 && main_~z~0 <= 65535); 12#L27-2true [2020-10-26 04:14:28,553 INFO L796 eck$LassoCheckResult]: Loop: 12#L27-2true assume !!(main_~x~0 >= 0); 6#L28true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 + main_~y~0; 4#L28-2true main_~y~0 := main_~y~0 + main_~z~0;main_~z~0 := main_~z~0 - 1; 12#L27-2true [2020-10-26 04:14:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:28,559 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2020-10-26 04:14:28,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:14:28,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033271647] [2020-10-26 04:14:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:14:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:28,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:28,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:28,701 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:14:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:28,708 INFO L82 PathProgramCache]: Analyzing trace with hash 54716, now seen corresponding path program 1 times [2020-10-26 04:14:28,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:14:28,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639330805] [2020-10-26 04:14:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:14:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:28,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:28,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:28,758 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:14:28,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1482218062, now seen corresponding path program 1 times [2020-10-26 04:14:28,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:14:28,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034881463] [2020-10-26 04:14:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:14:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:28,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:28,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:28,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:14:28,889 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:14:28,890 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:14:28,890 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:14:28,890 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:14:28,890 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:14:28,891 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:28,891 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:14:28,891 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:14:28,891 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure3Phase-1.c_Iteration1_Loop [2020-10-26 04:14:28,891 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:14:28,891 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:14:28,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:28,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:28,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:28,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:29,093 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:14:29,094 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) [2020-10-26 04:14:29,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:29,106 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:14:29,117 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-26 04:14:29,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:29,154 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:14:29,160 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:29,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:29,203 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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) [2020-10-26 04:14:29,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:14:29,253 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,488 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:14:29,491 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:14:29,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:14:29,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:14:29,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:14:29,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:14:29,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:14:29,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:14:29,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure3Phase-1.c_Iteration1_Loop [2020-10-26 04:14:29,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:14:29,495 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:14:29,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:29,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:29,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:29,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:29,632 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:14:29,637 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:14:29,650 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 [2020-10-26 04:14:29,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:29,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:29,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:14:29,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,664 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,697 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 [2020-10-26 04:14:29,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:29,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:29,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:14:29,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:14:29,709 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 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 [2020-10-26 04:14:29,744 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 [2020-10-26 04:14:29,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:29,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:29,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:29,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:14:29,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:14:29,758 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 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 [2020-10-26 04:14:29,783 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 [2020-10-26 04:14:29,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:29,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,786 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:14:29,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:29,794 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:14:29,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:14:29,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-26 04:14:29,830 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:14:29,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:29,841 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:29,846 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-26 04:14:29,846 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-26 04:14:29,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:29,891 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 [2020-10-26 04:14:29,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:29,893 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:29,898 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-26 04:14:29,898 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:29,934 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 [2020-10-26 04:14:29,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:29,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:29,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:29,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:29,937 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:29,942 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-26 04:14:29,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:14:29,958 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:30,032 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 [2020-10-26 04:14:30,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:30,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:30,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:30,036 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:14:30,036 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:30,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:14:30,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:14:30,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:30,097 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:30,107 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 [2020-10-26 04:14:30,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:30,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:30,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:30,110 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:14:30,115 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-26 04:14:30,115 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-26 04:14:30,123 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 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 [2020-10-26 04:14:30,155 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 [2020-10-26 04:14:30,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:30,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:30,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:30,157 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:14:30,162 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-26 04:14:30,162 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-26 04:14:30,171 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:30,208 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 [2020-10-26 04:14:30,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:30,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:30,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:30,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:30,211 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:14:30,215 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:14:30,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:30,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:14:30,237 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-26 04:14:30,237 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:30,243 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:14:30,244 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:14:30,244 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:30,245 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 + 1 f1 = 2*ULTIMATE.start_main_~y~0 + 1 f2 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-10-26 04:14:30,279 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:14:30,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:14:30,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:14:30,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:14:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:14:30,397 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:14:30,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:14:30,647 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-26 04:14:30,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:30,690 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:14:30,790 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-26 04:14:30,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2020-10-26 04:14:30,909 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 34 states and 43 transitions. Complement of second has 10 states. [2020-10-26 04:14:30,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-26 04:14:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:14:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2020-10-26 04:14:30,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-26 04:14:30,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:14:30,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 7 letters. Loop has 3 letters. [2020-10-26 04:14:30,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:14:30,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 4 letters. Loop has 6 letters. [2020-10-26 04:14:30,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:14:30,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2020-10-26 04:14:30,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:14:30,927 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 13 states and 16 transitions. [2020-10-26 04:14:30,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-26 04:14:30,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-26 04:14:30,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2020-10-26 04:14:30,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:14:30,930 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-26 04:14:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2020-10-26 04:14:30,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-10-26 04:14:30,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-26 04:14:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-10-26 04:14:30,959 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-26 04:14:30,959 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-26 04:14:30,959 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:14:30,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-10-26 04:14:30,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:14:30,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:14:30,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:14:30,963 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:14:30,963 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:14:30,968 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 108#L24 assume !!(main_~x~0 <= 65535); 111#L25 assume !!(-65535 <= main_~y~0 && main_~y~0 <= 65535); 105#L26 assume !!(-65535 <= main_~z~0 && main_~z~0 <= 65535); 106#L27-2 assume !!(main_~x~0 >= 0); 109#L28 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_~x~0 + main_~z~0; 101#L28-2 [2020-10-26 04:14:30,969 INFO L796 eck$LassoCheckResult]: Loop: 101#L28-2 main_~y~0 := main_~y~0 + main_~z~0;main_~z~0 := main_~z~0 - 1; 102#L27-2 assume !!(main_~x~0 >= 0); 112#L28 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 + main_~y~0; 101#L28-2 [2020-10-26 04:14:30,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:30,969 INFO L82 PathProgramCache]: Analyzing trace with hash 922017840, now seen corresponding path program 1 times [2020-10-26 04:14:30,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:14:30,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960273373] [2020-10-26 04:14:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:14:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:30,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:31,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:31,008 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:14:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:31,012 INFO L82 PathProgramCache]: Analyzing trace with hash 61346, now seen corresponding path program 2 times [2020-10-26 04:14:31,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:14:31,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216874198] [2020-10-26 04:14:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:14:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:31,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:31,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:31,028 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:14:31,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:31,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1517645075, now seen corresponding path program 1 times [2020-10-26 04:14:31,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:14:31,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017155429] [2020-10-26 04:14:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:14:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:31,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:14:31,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:14:31,067 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:14:31,094 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:14:31,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:14:31,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:14:31,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:14:31,095 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:14:31,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:14:31,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:14:31,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure3Phase-1.c_Iteration2_Loop [2020-10-26 04:14:31,096 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:14:31,096 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:14:31,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,199 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:14:31,201 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2020-10-26 04:14:31,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:31,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:14:31,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:14:31,213 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) [2020-10-26 04:14:31,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:31,253 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,258 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:14:31,258 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-26 04:14:31,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:31,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:14:31,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:14:31,290 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 [2020-10-26 04:14:31,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:14:31,324 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2020-10-26 04:14:31,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:14:31,370 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,606 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:14:31,608 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:14:31,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:14:31,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:14:31,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:14:31,609 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:14:31,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,609 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:14:31,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:14:31,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: Pure3Phase-1.c_Iteration2_Loop [2020-10-26 04:14:31,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:14:31,610 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:14:31,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:14:31,690 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:14:31,690 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:14:31,702 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 [2020-10-26 04:14:31,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:31,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:31,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:14:31,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:31,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:14:31,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:31,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,749 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:14:31,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:31,750 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:14:31,751 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 [2020-10-26 04:14:31,755 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:14:31,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:31,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:31,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:31,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:14:31,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:14:31,802 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:31,843 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 [2020-10-26 04:14:31,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:31,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:14:31,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:14:31,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-26 04:14:31,885 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) [2020-10-26 04:14:31,890 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 [2020-10-26 04:14:31,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:31,893 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:31,898 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-26 04:14:31,898 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,907 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:31,942 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 [2020-10-26 04:14:31,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:31,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,946 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:14:31,946 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:31,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:14:31,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,953 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:31,987 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 [2020-10-26 04:14:31,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:31,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:31,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:31,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:31,990 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:31,993 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-26 04:14:31,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:31,997 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) [2020-10-26 04:14:32,032 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 [2020-10-26 04:14:32,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:32,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:32,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:32,034 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:14:32,038 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-26 04:14:32,039 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:32,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-26 04:14:32,074 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) [2020-10-26 04:14:32,078 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 [2020-10-26 04:14:32,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:32,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:32,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:32,081 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:14:32,092 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-26 04:14:32,093 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:32,103 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:32,134 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 [2020-10-26 04:14:32,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:32,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:32,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:32,137 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:14:32,137 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:14:32,139 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-26 04:14:32,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:14:32,144 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:32,180 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 [2020-10-26 04:14:32,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:14:32,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:14:32,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:14:32,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:14:32,183 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:14:32,187 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:14:32,187 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 [2020-10-26 04:14:32,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:14:32,203 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-26 04:14:32,203 INFO L444 ModelExtractionUtils]: 5 out of 13 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:14:32,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:14:32,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:14:32,207 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:14:32,207 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~z~0 + 1 f2 = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:14:32,239 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:14:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:14:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:14:32,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:14:32,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:14:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:14:32,282 WARN L261 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 04:14:32,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:14:32,301 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,304 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,309 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,318 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,320 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,332 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,334 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,337 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,342 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,347 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,378 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-26 04:14:32,392 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,395 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,402 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,411 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,415 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 04:14:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:14:32,690 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-26 04:14:32,690 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-26 04:14:32,765 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 15 states and 19 transitions. Complement of second has 6 states. [2020-10-26 04:14:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:14:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:14:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-10-26 04:14:32,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-26 04:14:32,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:14:32,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2020-10-26 04:14:32,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:14:32,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2020-10-26 04:14:32,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:14:32,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-26 04:14:32,769 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:14:32,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-26 04:14:32,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:14:32,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:14:32,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:14:32,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:14:32,770 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:14:32,770 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:14:32,770 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:14:32,770 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:14:32,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:14:32,770 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:14:32,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:14:32,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:14:32 BoogieIcfgContainer [2020-10-26 04:14:32,777 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:14:32,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:14:32,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:14:32,778 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:14:32,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:14:28" (3/4) ... [2020-10-26 04:14:32,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:14:32,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:14:32,783 INFO L168 Benchmark]: Toolchain (without parser) took 5024.20 ms. Allocated memory was 41.9 MB in the beginning and 73.4 MB in the end (delta: 31.5 MB). Free memory was 27.8 MB in the beginning and 53.2 MB in the end (delta: -25.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:14:32,784 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory was 20.7 MB in the beginning and 20.7 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:14:32,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.14 ms. Allocated memory is still 41.9 MB. Free memory was 27.2 MB in the beginning and 18.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:14:32,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.58 ms. Allocated memory is still 41.9 MB. Free memory was 18.5 MB in the beginning and 17.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:14:32,786 INFO L168 Benchmark]: Boogie Preprocessor took 20.63 ms. Allocated memory is still 41.9 MB. Free memory was 17.3 MB in the beginning and 16.4 MB in the end (delta: 954.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:14:32,786 INFO L168 Benchmark]: RCFGBuilder took 282.54 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 16.3 MB in the beginning and 28.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:14:32,787 INFO L168 Benchmark]: BuchiAutomizer took 4381.70 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 28.4 MB in the beginning and 53.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:14:32,788 INFO L168 Benchmark]: Witness Printer took 4.31 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 53.2 MB in the end (delta: 624.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:14:32,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory was 20.7 MB in the beginning and 20.7 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.14 ms. Allocated memory is still 41.9 MB. Free memory was 27.2 MB in the beginning and 18.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.58 ms. Allocated memory is still 41.9 MB. Free memory was 18.5 MB in the beginning and 17.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.63 ms. Allocated memory is still 41.9 MB. Free memory was 17.3 MB in the beginning and 16.4 MB in the end (delta: 954.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 282.54 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 16.3 MB in the beginning and 28.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4381.70 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 28.4 MB in the beginning and 53.8 MB in the end (delta: -25.4 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.31 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 53.2 MB in the end (delta: 624.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if 2 * z + 1 > 0 then 2 else (if 2 * y + 1 > 0 then 1 else 0)), (if 2 * z + 1 > 0 then 2 * z + 1 else (if 2 * y + 1 > 0 then 2 * y + 1 else 2 * x + 1)) and consists of 6 locations. One deterministic module has 3-nested ranking function (if 2 * z > 0 then 2 else (if 2 * y + 2 * z + 1 > 0 then 1 else 0)), (if 2 * z > 0 then 2 * z else (if 2 * y + 2 * z + 1 > 0 then 2 * y + 2 * z + 1 else 2 * x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 20 SDtfs, 21 SDslu, 9 SDs, 0 SdLazy, 27 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax150 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf92 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...