./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/trex01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/trex01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 779bf9ee71941115d797b5e86cdaa11633497030 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 07:04:40,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 07:04:40,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 07:04:40,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 07:04:40,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 07:04:40,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 07:04:40,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 07:04:40,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 07:04:40,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 07:04:40,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 07:04:40,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 07:04:40,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 07:04:40,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 07:04:40,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 07:04:40,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 07:04:40,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 07:04:40,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 07:04:40,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 07:04:40,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 07:04:40,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 07:04:40,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 07:04:40,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 07:04:40,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 07:04:40,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 07:04:40,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 07:04:40,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 07:04:40,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 07:04:40,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 07:04:40,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 07:04:40,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 07:04:40,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 07:04:40,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 07:04:40,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 07:04:40,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 07:04:40,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 07:04:40,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 07:04:40,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 07:04:40,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 07:04:40,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 07:04:40,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 07:04:40,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 07:04:40,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 07:04:40,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 07:04:40,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 07:04:40,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 07:04:40,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 07:04:40,882 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 07:04:40,882 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 07:04:40,883 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 07:04:40,883 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 07:04:40,883 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 07:04:40,883 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 07:04:40,884 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 07:04:40,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 07:04:40,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 07:04:40,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 07:04:40,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 07:04:40,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 07:04:40,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 07:04:40,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 07:04:40,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 07:04:40,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 07:04:40,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 07:04:40,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 07:04:40,887 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 07:04:40,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 07:04:40,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 07:04:40,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 07:04:40,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 07:04:40,888 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 07:04:40,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 07:04:40,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 07:04:40,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 07:04:40,889 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 07:04:40,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 07:04:40,890 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 779bf9ee71941115d797b5e86cdaa11633497030 [2020-10-20 07:04:41,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 07:04:41,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 07:04:41,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 07:04:41,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 07:04:41,099 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 07:04:41,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex01-1.c [2020-10-20 07:04:41,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01c38078/dffa2f3a43c0487aabd72eab56fe7481/FLAG908eb1684 [2020-10-20 07:04:41,677 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 07:04:41,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex01-1.c [2020-10-20 07:04:41,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01c38078/dffa2f3a43c0487aabd72eab56fe7481/FLAG908eb1684 [2020-10-20 07:04:41,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01c38078/dffa2f3a43c0487aabd72eab56fe7481 [2020-10-20 07:04:41,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 07:04:41,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 07:04:42,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:42,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 07:04:42,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 07:04:42,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:41" (1/1) ... [2020-10-20 07:04:42,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e670470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42, skipping insertion in model container [2020-10-20 07:04:42,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 07:04:41" (1/1) ... [2020-10-20 07:04:42,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 07:04:42,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 07:04:42,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:42,242 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 07:04:42,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 07:04:42,282 INFO L208 MainTranslator]: Completed translation [2020-10-20 07:04:42,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42 WrapperNode [2020-10-20 07:04:42,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 07:04:42,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:42,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 07:04:42,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 07:04:42,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 07:04:42,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 07:04:42,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 07:04:42,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 07:04:42,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... [2020-10-20 07:04:42,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 07:04:42,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 07:04:42,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 07:04:42,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 07:04:42,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 07:04:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 07:04:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 07:04:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 07:04:42,665 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 07:04:42,665 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 07:04:42,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:42 BoogieIcfgContainer [2020-10-20 07:04:42,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 07:04:42,668 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 07:04:42,668 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 07:04:42,672 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 07:04:42,673 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:42,673 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 07:04:41" (1/3) ... [2020-10-20 07:04:42,674 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@713ee569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:42, skipping insertion in model container [2020-10-20 07:04:42,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:42,675 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 07:04:42" (2/3) ... [2020-10-20 07:04:42,675 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@713ee569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 07:04:42, skipping insertion in model container [2020-10-20 07:04:42,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 07:04:42,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:42" (3/3) ... [2020-10-20 07:04:42,677 INFO L373 chiAutomizerObserver]: Analyzing ICFG trex01-1.c [2020-10-20 07:04:42,734 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 07:04:42,735 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 07:04:42,735 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 07:04:42,737 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 07:04:42,737 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 07:04:42,738 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 07:04:42,738 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 07:04:42,738 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 07:04:42,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-20 07:04:42,812 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-20 07:04:42,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:42,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:42,820 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 07:04:42,820 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 07:04:42,820 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 07:04:42,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-20 07:04:42,824 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-20 07:04:42,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:42,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:42,824 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 07:04:42,825 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 07:04:42,834 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 18#L37true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 4#L16true assume !!(f_~k~0 <= 1073741823); 21#L19-1true [2020-10-20 07:04:42,835 INFO L796 eck$LassoCheckResult]: Loop: 21#L19-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 21#L19-1true [2020-10-20 07:04:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:42,842 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2020-10-20 07:04:42,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:42,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238076907] [2020-10-20 07:04:42,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:42,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:42,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:42,984 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:42,985 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-20 07:04:42,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:42,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793143229] [2020-10-20 07:04:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:43,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:43,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:43,005 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:43,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:43,007 INFO L82 PathProgramCache]: Analyzing trace with hash 28693867, now seen corresponding path program 1 times [2020-10-20 07:04:43,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:43,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909151664] [2020-10-20 07:04:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:43,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:43,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:43,062 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:43,346 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-20 07:04:43,480 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-20 07:04:43,489 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:43,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:43,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:43,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:43,491 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:43,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:43,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:43,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:43,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration1_Lasso [2020-10-20 07:04:43,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:43,492 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:43,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:43,986 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:43,991 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:43,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:44,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:44,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:44,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:44,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:44,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:44,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:44,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:44,008 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:44,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:44,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:44,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:44,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:44,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:44,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:44,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:44,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:44,053 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:44,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:44,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:44,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:44,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:44,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:44,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:44,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:44,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:44,103 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:44,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:44,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:44,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:44,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:44,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:44,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:44,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:44,152 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:44,172 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-20 07:04:44,172 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:44,182 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:44,187 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:44,187 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:44,188 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-10-20 07:04:44,236 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:44,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:44,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 07:04:44,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:44,316 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:44,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:44,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:44,333 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-10-20 07:04:44,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2020-10-20 07:04:44,492 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 72 states and 100 transitions. Complement of second has 7 states. [2020-10-20 07:04:44,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:44,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2020-10-20 07:04:44,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-20 07:04:44,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:44,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-20 07:04:44,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:44,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 07:04:44,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:44,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 100 transitions. [2020-10-20 07:04:44,521 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2020-10-20 07:04:44,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 24 states and 32 transitions. [2020-10-20 07:04:44,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-20 07:04:44,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 07:04:44,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2020-10-20 07:04:44,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:04:44,530 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2020-10-20 07:04:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2020-10-20 07:04:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2020-10-20 07:04:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 07:04:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-10-20 07:04:44,569 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-20 07:04:44,570 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-20 07:04:44,570 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 07:04:44,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-10-20 07:04:44,573 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-20 07:04:44,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:44,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:44,574 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 07:04:44,574 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 07:04:44,575 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 187#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 178#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 175#L16-1 assume !!(f_~k~0 <= 1073741823); 176#L19-4 [2020-10-20 07:04:44,575 INFO L796 eck$LassoCheckResult]: Loop: 176#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 176#L19-4 [2020-10-20 07:04:44,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:44,576 INFO L82 PathProgramCache]: Analyzing trace with hash 927240, now seen corresponding path program 1 times [2020-10-20 07:04:44,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:44,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260492564] [2020-10-20 07:04:44,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:44,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:44,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:44,650 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:44,650 INFO L82 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 1 times [2020-10-20 07:04:44,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:44,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148284635] [2020-10-20 07:04:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:44,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:44,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:44,664 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:44,665 INFO L82 PathProgramCache]: Analyzing trace with hash 28744510, now seen corresponding path program 1 times [2020-10-20 07:04:44,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:44,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555530465] [2020-10-20 07:04:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:44,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:44,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:44,725 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:44,920 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-20 07:04:45,000 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:45,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:45,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:45,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:45,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:45,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:45,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:45,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration2_Lasso [2020-10-20 07:04:45,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:45,002 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:45,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:45,362 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:45,362 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:45,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,381 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) [2020-10-20 07:04:45,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:45,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:45,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,450 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) [2020-10-20 07:04:45,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:45,503 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:45,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:45,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:45,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:45,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:45,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:45,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:45,592 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 [2020-10-20 07:04:45,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:45,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:45,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:45,623 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:45,665 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 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 [2020-10-20 07:04:45,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:45,713 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) [2020-10-20 07:04:45,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:45,764 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) [2020-10-20 07:04:45,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,819 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:45,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:45,918 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:45,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:45,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:45,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:45,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:45,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:45,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:45,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:45,979 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:46,032 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 [2020-10-20 07:04:46,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,040 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,114 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,144 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:46,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:46,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:46,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,220 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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:46,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:46,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:46,261 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:46,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:46,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:46,288 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:46,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:46,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:46,317 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) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:46,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:46,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:46,345 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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:46,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,427 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) [2020-10-20 07:04:46,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:46,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:46,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,479 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) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:46,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:46,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:46,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:46,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:46,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:46,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:46,554 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:46,572 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-20 07:04:46,572 INFO L444 ModelExtractionUtils]: 4 out of 10 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:46,575 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:46,578 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:46,578 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:46,579 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2020-10-20 07:04:46,627 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:46,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:46,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 07:04:46,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:46,675 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:46,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:46,676 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2020-10-20 07:04:46,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-10-20 07:04:46,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 30 states and 41 transitions. Complement of second has 6 states. [2020-10-20 07:04:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 07:04:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 07:04:46,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-20 07:04:46,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:46,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-20 07:04:46,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:46,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 07:04:46,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:46,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2020-10-20 07:04:46,758 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-10-20 07:04:46,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 34 transitions. [2020-10-20 07:04:46,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-20 07:04:46,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 07:04:46,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2020-10-20 07:04:46,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:04:46,760 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2020-10-20 07:04:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2020-10-20 07:04:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2020-10-20 07:04:46,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 07:04:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-10-20 07:04:46,762 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-20 07:04:46,762 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-20 07:04:46,762 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 07:04:46,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-10-20 07:04:46,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:46,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:46,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:46,764 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:46,764 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:46,764 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 310#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 301#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 302#L16 assume !!(f_~k~0 <= 1073741823); 303#L19-1 assume !(f_~z~0 < f_~k~0); 306#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 304#L6 assume !(0 == __VERIFIER_assert_~cond); 305#L24-2 [2020-10-20 07:04:46,764 INFO L796 eck$LassoCheckResult]: Loop: 305#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 313#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 305#L24-2 [2020-10-20 07:04:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:46,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1805001234, now seen corresponding path program 1 times [2020-10-20 07:04:46,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:46,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120258314] [2020-10-20 07:04:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:46,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120258314] [2020-10-20 07:04:46,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 07:04:46,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 07:04:46,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509339546] [2020-10-20 07:04:46,835 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 07:04:46,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:46,835 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 1 times [2020-10-20 07:04:46,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:46,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592211956] [2020-10-20 07:04:46,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,843 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:46,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 07:04:46,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 07:04:46,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 07:04:46,869 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-20 07:04:46,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 07:04:46,914 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-10-20 07:04:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 07:04:46,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2020-10-20 07:04:46,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:46,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 24 transitions. [2020-10-20 07:04:46,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-10-20 07:04:46,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-20 07:04:46,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-10-20 07:04:46,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:04:46,917 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-20 07:04:46,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-10-20 07:04:46,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 07:04:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 07:04:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-10-20 07:04:46,919 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-20 07:04:46,919 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-20 07:04:46,919 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 07:04:46,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-10-20 07:04:46,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:46,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:46,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:46,920 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:46,920 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:46,920 INFO L794 eck$LassoCheckResult]: Stem: 363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 361#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 352#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 353#L16 assume !!(f_~k~0 <= 1073741823); 354#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 358#L19-1 assume !(f_~z~0 < f_~k~0); 357#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 355#L6 assume !(0 == __VERIFIER_assert_~cond); 356#L24-2 [2020-10-20 07:04:46,921 INFO L796 eck$LassoCheckResult]: Loop: 356#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 364#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 356#L24-2 [2020-10-20 07:04:46,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:46,921 INFO L82 PathProgramCache]: Analyzing trace with hash 120516975, now seen corresponding path program 1 times [2020-10-20 07:04:46,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:46,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19538387] [2020-10-20 07:04:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,946 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 2 times [2020-10-20 07:04:46,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:46,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786442502] [2020-10-20 07:04:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:46,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:46,955 INFO L82 PathProgramCache]: Analyzing trace with hash -147302634, now seen corresponding path program 1 times [2020-10-20 07:04:46,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:46,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525197599] [2020-10-20 07:04:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:46,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:46,991 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:47,220 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-10-20 07:04:47,434 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-20 07:04:47,438 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:47,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:47,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:47,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:47,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:47,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:47,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:47,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:47,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration4_Lasso [2020-10-20 07:04:47,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:47,439 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:47,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:47,886 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:47,886 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:47,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:47,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:47,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:47,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:47,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:47,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:47,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:47,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:47,901 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:47,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:47,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:47,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:47,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:47,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:47,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:47,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:47,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:47,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:47,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:47,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:47,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:47,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:47,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:47,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:47,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:47,955 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:47,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:47,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:47,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:47,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:47,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:47,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:47,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:47,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:47,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:48,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:48,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:48,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:48,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:48,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:48,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:48,013 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:48,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:48,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:48,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:48,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:48,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:48,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:48,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:48,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:48,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:48,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:48,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:48,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:48,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:48,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:48,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:48,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:48,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:48,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:48,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:48,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:48,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:48,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:48,100 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:48,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:48,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:48,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:48,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:48,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:48,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:48,134 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:48,140 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 07:04:48,140 INFO L444 ModelExtractionUtils]: 8 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,143 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:48,145 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:48,145 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:48,145 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-10-20 07:04:48,182 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:48,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:48,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:48,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:48,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:48,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:48,266 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:48,266 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-20 07:04:48,300 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 25 states and 32 transitions. Complement of second has 6 states. [2020-10-20 07:04:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:48,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:48,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-10-20 07:04:48,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 07:04:48,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:48,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 07:04:48,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:48,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-20 07:04:48,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:48,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-10-20 07:04:48,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:48,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 31 transitions. [2020-10-20 07:04:48,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-20 07:04:48,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-20 07:04:48,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-10-20 07:04:48,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:48,304 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-20 07:04:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-10-20 07:04:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-20 07:04:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 07:04:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2020-10-20 07:04:48,306 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-10-20 07:04:48,307 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-10-20 07:04:48,307 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 07:04:48,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2020-10-20 07:04:48,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:48,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:48,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:48,308 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:48,308 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:48,308 INFO L794 eck$LassoCheckResult]: Stem: 497#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 495#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 486#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 482#L16-1 assume !!(f_~k~0 <= 1073741823); 483#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 484#L19-4 assume !(f_~z~0 < f_~k~0); 485#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 504#L6-3 assume !(0 == __VERIFIER_assert_~cond); 493#L24-5 [2020-10-20 07:04:48,308 INFO L796 eck$LassoCheckResult]: Loop: 493#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 494#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 493#L24-5 [2020-10-20 07:04:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:48,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1629273231, now seen corresponding path program 1 times [2020-10-20 07:04:48,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:48,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240110381] [2020-10-20 07:04:48,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:48,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:48,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:48,338 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:48,339 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 1 times [2020-10-20 07:04:48,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:48,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559696509] [2020-10-20 07:04:48,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:48,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:48,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:48,345 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:48,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1931485034, now seen corresponding path program 1 times [2020-10-20 07:04:48,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:48,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508131603] [2020-10-20 07:04:48,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:48,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:48,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:48,367 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:48,574 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-10-20 07:04:48,747 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-20 07:04:48,751 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:48,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:48,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:48,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:48,751 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:48,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:48,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:48,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:48,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration5_Lasso [2020-10-20 07:04:48,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:48,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:48,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:48,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:49,163 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:49,163 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,302 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,388 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,510 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,561 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,608 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,650 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,688 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:49,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:49,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:49,721 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,744 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,744 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:49,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:49,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:49,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,795 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 [2020-10-20 07:04:49,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:49,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:49,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:49,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:49,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:49,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:49,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:49,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:49,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:49,849 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:49,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:49,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:49,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:49,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:49,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:49,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:49,887 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:49,894 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 07:04:49,894 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:49,897 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:49,900 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:49,900 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:49,900 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-10-20 07:04:49,949 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:49,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:49,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:49,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:49,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:49,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:50,007 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:50,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-10-20 07:04:50,050 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 29 states and 38 transitions. Complement of second has 6 states. [2020-10-20 07:04:50,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-10-20 07:04:50,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-20 07:04:50,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:50,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 07:04:50,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:50,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-20 07:04:50,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:50,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-10-20 07:04:50,055 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:50,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 37 transitions. [2020-10-20 07:04:50,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-20 07:04:50,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-20 07:04:50,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2020-10-20 07:04:50,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:50,056 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2020-10-20 07:04:50,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2020-10-20 07:04:50,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-10-20 07:04:50,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 07:04:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-20 07:04:50,058 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-20 07:04:50,058 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-20 07:04:50,058 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 07:04:50,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2020-10-20 07:04:50,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-20 07:04:50,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:50,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:50,059 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:50,060 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 07:04:50,060 INFO L794 eck$LassoCheckResult]: Stem: 642#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 640#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 628#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 629#L16 assume !!(f_~k~0 <= 1073741823); 630#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 634#L19-1 assume !(f_~z~0 < f_~k~0); 633#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 631#L6 assume !(0 == __VERIFIER_assert_~cond); 632#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 647#L24 assume 0 != f_~c~0 % 256; 648#L25 [2020-10-20 07:04:50,060 INFO L796 eck$LassoCheckResult]: Loop: 648#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 643#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 644#L24 assume 0 != f_~c~0 % 256; 648#L25 [2020-10-20 07:04:50,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:50,060 INFO L82 PathProgramCache]: Analyzing trace with hash -147302638, now seen corresponding path program 1 times [2020-10-20 07:04:50,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:50,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049514972] [2020-10-20 07:04:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:50,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:50,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:50,088 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:50,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:50,090 INFO L82 PathProgramCache]: Analyzing trace with hash 77298, now seen corresponding path program 1 times [2020-10-20 07:04:50,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:50,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989611260] [2020-10-20 07:04:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:50,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:50,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:50,111 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:50,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:50,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1163735361, now seen corresponding path program 1 times [2020-10-20 07:04:50,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:50,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941124342] [2020-10-20 07:04:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:50,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:50,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:50,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:50,197 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:50,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:50,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:50,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:50,197 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:50,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:50,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:50,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:50,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Loop [2020-10-20 07:04:50,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:50,198 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:50,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,333 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:50,334 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:50,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:50,348 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:50,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:50,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet10=36, ULTIMATE.start_f_~c~0=36} Honda state: {ULTIMATE.start_f_#t~nondet10=36, ULTIMATE.start_f_~c~0=36} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:50,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:50,382 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:50,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:50,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:50,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:50,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-5}, {ULTIMATE.start_f_~z~0=5}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:50,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:50,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:50,453 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:50,453 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=160, ULTIMATE.start_f_#t~nondet11=160} Honda state: {ULTIMATE.start_f_~y~0=160, ULTIMATE.start_f_#t~nondet11=160} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:50,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:50,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:50,477 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:50,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-10-20 07:04:50,729 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-10-20 07:04:50,958 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-20 07:04:50,961 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:50,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:50,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:50,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:50,962 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:50,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:50,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:50,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:50,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Lasso [2020-10-20 07:04:50,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:50,962 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:50,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:50,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:51,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:51,472 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,543 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:51,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:51,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:51,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:51,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:51,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:51,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:51,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:51,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:51,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:51,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:51,697 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 Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,702 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:51,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,876 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,880 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,904 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,904 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,907 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,965 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 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:51,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:51,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:51,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:51,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:51,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:51,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:51,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:51,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:52,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:52,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:52,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:52,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:52,018 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:52,018 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:52,024 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:52,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:52,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:52,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:52,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:52,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:52,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:52,052 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 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:52,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:52,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:52,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:52,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:52,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:52,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:52,086 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:52,091 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-20 07:04:52,091 INFO L444 ModelExtractionUtils]: 7 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:52,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,103 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:52,103 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:52,103 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-10-20 07:04:52,139 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:52,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:52,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:52,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:52,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:52,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:52,225 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-10-20 07:04:52,225 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 15 Second operand 5 states. [2020-10-20 07:04:52,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 37 states and 49 transitions. Complement of second has 7 states. [2020-10-20 07:04:52,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:52,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 07:04:52,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-20 07:04:52,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 07:04:52,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:52,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 07:04:52,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:52,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-20 07:04:52,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:52,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 49 transitions. [2020-10-20 07:04:52,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-20 07:04:52,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 44 transitions. [2020-10-20 07:04:52,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-20 07:04:52,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-20 07:04:52,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2020-10-20 07:04:52,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:52,283 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-10-20 07:04:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2020-10-20 07:04:52,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-20 07:04:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-20 07:04:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-10-20 07:04:52,286 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-10-20 07:04:52,286 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-10-20 07:04:52,286 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 07:04:52,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2020-10-20 07:04:52,287 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-20 07:04:52,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:52,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:52,288 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:52,288 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 07:04:52,288 INFO L794 eck$LassoCheckResult]: Stem: 808#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 806#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 794#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 790#L16-1 assume !!(f_~k~0 <= 1073741823); 791#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 792#L19-4 assume !(f_~z~0 < f_~k~0); 793#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 815#L6-3 assume !(0 == __VERIFIER_assert_~cond); 816#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 805#L24-3 assume 0 != f_~c~0 % 256; 807#L25-1 [2020-10-20 07:04:52,288 INFO L796 eck$LassoCheckResult]: Loop: 807#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 801#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 802#L24-3 assume 0 != f_~c~0 % 256; 807#L25-1 [2020-10-20 07:04:52,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1931485038, now seen corresponding path program 1 times [2020-10-20 07:04:52,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:52,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013433224] [2020-10-20 07:04:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:52,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:52,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:52,307 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:52,307 INFO L82 PathProgramCache]: Analyzing trace with hash 127941, now seen corresponding path program 1 times [2020-10-20 07:04:52,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:52,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372805121] [2020-10-20 07:04:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:52,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:52,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:52,314 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:52,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:52,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1193804396, now seen corresponding path program 1 times [2020-10-20 07:04:52,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:52,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602575425] [2020-10-20 07:04:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:52,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:52,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:52,336 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:52,364 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:52,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:52,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:52,364 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:52,364 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 07:04:52,364 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,364 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:52,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:52,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Loop [2020-10-20 07:04:52,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:52,365 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:52,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:52,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:52,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:52,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:52,504 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:52,505 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:52,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:52,507 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,518 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:52,518 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet10=-128, ULTIMATE.start_f_~c~0=-128} Honda state: {ULTIMATE.start_f_#t~nondet10=-128, ULTIMATE.start_f_~c~0=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:52,539 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 07:04:52,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:52,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:52,578 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1}, {ULTIMATE.start_f_~z~0=-5}, {ULTIMATE.start_f_~z~0=5}] Lambdas: [1, 2, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:52,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:52,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:52,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=48, ULTIMATE.start_f_#t~nondet11=48} Honda state: {ULTIMATE.start_f_~y~0=48, ULTIMATE.start_f_#t~nondet11=48} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:52,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 07:04:52,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 07:04:52,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 07:04:52,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-10-20 07:04:52,877 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-20 07:04:53,083 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-20 07:04:53,085 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:53,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:53,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:53,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:53,086 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:53,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:53,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:53,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:53,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Lasso [2020-10-20 07:04:53,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:53,086 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:53,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:53,575 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:53,575 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:53,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:53,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:53,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:53,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:53,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:53,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:53,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:53,600 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:53,611 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-20 07:04:53,611 INFO L444 ModelExtractionUtils]: 6 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:53,614 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:53,618 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-10-20 07:04:53,619 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:53,619 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 >= 0] [2020-10-20 07:04:53,670 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-20 07:04:53,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:53,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:53,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:53,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:53,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:53,753 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-10-20 07:04:53,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 18 Second operand 5 states. [2020-10-20 07:04:53,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 7 states. [2020-10-20 07:04:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 07:04:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-20 07:04:53,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-20 07:04:53,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:53,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-20 07:04:53,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:53,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-20 07:04:53,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:53,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2020-10-20 07:04:53,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 07:04:53,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 51 transitions. [2020-10-20 07:04:53,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-20 07:04:53,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-20 07:04:53,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2020-10-20 07:04:53,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:53,833 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-10-20 07:04:53,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2020-10-20 07:04:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-20 07:04:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 07:04:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2020-10-20 07:04:53,841 INFO L714 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-10-20 07:04:53,841 INFO L594 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-10-20 07:04:53,841 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 07:04:53,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2020-10-20 07:04:53,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 07:04:53,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:53,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:53,842 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:53,842 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:53,843 INFO L794 eck$LassoCheckResult]: Stem: 988#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 985#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 974#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 975#L16 assume !!(f_~k~0 <= 1073741823); 976#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 980#L19-1 assume !(f_~z~0 < f_~k~0); 979#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 977#L6 assume !(0 == __VERIFIER_assert_~cond); 978#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1002#L24 assume 0 != f_~c~0 % 256; 999#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1000#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1006#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 989#L24-2 [2020-10-20 07:04:53,843 INFO L796 eck$LassoCheckResult]: Loop: 989#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 990#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 989#L24-2 [2020-10-20 07:04:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:53,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1163735365, now seen corresponding path program 1 times [2020-10-20 07:04:53,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:53,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844683847] [2020-10-20 07:04:53,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:53,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:53,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:53,892 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:53,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:53,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 3 times [2020-10-20 07:04:53,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:53,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094747000] [2020-10-20 07:04:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:53,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:53,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:53,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:53,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:53,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1658190188, now seen corresponding path program 2 times [2020-10-20 07:04:53,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:53,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17066009] [2020-10-20 07:04:53,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:53,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:53,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:53,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:54,289 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-10-20 07:04:54,531 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-20 07:04:54,533 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:54,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:54,533 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:54,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:54,533 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:54,534 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:54,534 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:54,534 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:54,534 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration8_Lasso [2020-10-20 07:04:54,534 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:54,534 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:54,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:54,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:55,030 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:55,030 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,042 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 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,067 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 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,093 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 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,129 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 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,159 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 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,194 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 07:04:55,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,233 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 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,266 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 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,293 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 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,319 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 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,343 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,346 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 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,376 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 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,403 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 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,441 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 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,464 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,470 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 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:55,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:55,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:55,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:55,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:55,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:55,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:55,503 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:55,508 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 07:04:55,508 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:55,510 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:55,512 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:55,512 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:55,512 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-10-20 07:04:55,553 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:55,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:55,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:55,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:55,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:55,617 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:55,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-10-20 07:04:55,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 55 states and 72 transitions. Complement of second has 6 states. [2020-10-20 07:04:55,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 07:04:55,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-20 07:04:55,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:55,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:04:55,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:55,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2020-10-20 07:04:55,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:55,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 72 transitions. [2020-10-20 07:04:55,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 07:04:55,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 62 transitions. [2020-10-20 07:04:55,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-20 07:04:55,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-20 07:04:55,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2020-10-20 07:04:55,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:55,667 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-20 07:04:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2020-10-20 07:04:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-20 07:04:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-20 07:04:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-20 07:04:55,670 INFO L714 BuchiCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-20 07:04:55,670 INFO L594 BuchiCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-20 07:04:55,670 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-20 07:04:55,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 60 transitions. [2020-10-20 07:04:55,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 07:04:55,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:55,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:55,672 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:55,672 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:55,672 INFO L794 eck$LassoCheckResult]: Stem: 1185#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1182#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 1171#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 1167#L16-1 assume !!(f_~k~0 <= 1073741823); 1168#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1169#L19-4 assume !(f_~z~0 < f_~k~0); 1170#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1196#L6-3 assume !(0 == __VERIFIER_assert_~cond); 1197#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1200#L24-3 assume 0 != f_~c~0 % 256; 1193#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1194#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1201#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1178#L24-5 [2020-10-20 07:04:55,672 INFO L796 eck$LassoCheckResult]: Loop: 1178#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1179#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1178#L24-5 [2020-10-20 07:04:55,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:55,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1193804392, now seen corresponding path program 1 times [2020-10-20 07:04:55,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:55,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703447483] [2020-10-20 07:04:55,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:55,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:55,690 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:55,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:55,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:55,693 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 2 times [2020-10-20 07:04:55,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:55,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088981282] [2020-10-20 07:04:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:55,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:55,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:55,698 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:55,698 INFO L82 PathProgramCache]: Analyzing trace with hash -489749665, now seen corresponding path program 2 times [2020-10-20 07:04:55,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:55,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996954209] [2020-10-20 07:04:55,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:55,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:55,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:55,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:56,083 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2020-10-20 07:04:56,346 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-20 07:04:56,349 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:56,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:56,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:56,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:56,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:56,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:56,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:56,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:56,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration9_Lasso [2020-10-20 07:04:56,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:56,350 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:56,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:56,851 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:56,851 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:56,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:56,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:56,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:56,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:56,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:56,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:56,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:56,862 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 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:56,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:56,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:56,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:56,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:56,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:56,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:56,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:56,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:56,901 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-20 07:04:56,901 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:56,903 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:56,905 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:56,905 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:56,905 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-10-20 07:04:56,946 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:56,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:56,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:56,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:56,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:56,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:57,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:57,009 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:57,009 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 60 transitions. cyclomatic complexity: 25 Second operand 4 states. [2020-10-20 07:04:57,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 60 transitions. cyclomatic complexity: 25. Second operand 4 states. Result 63 states and 82 transitions. Complement of second has 6 states. [2020-10-20 07:04:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:57,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 07:04:57,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-20 07:04:57,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:57,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:04:57,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:57,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2020-10-20 07:04:57,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:57,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2020-10-20 07:04:57,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 07:04:57,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 55 states and 72 transitions. [2020-10-20 07:04:57,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-20 07:04:57,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-20 07:04:57,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 72 transitions. [2020-10-20 07:04:57,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:57,051 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 72 transitions. [2020-10-20 07:04:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 72 transitions. [2020-10-20 07:04:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-10-20 07:04:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 07:04:57,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2020-10-20 07:04:57,054 INFO L714 BuchiCegarLoop]: Abstraction has 53 states and 70 transitions. [2020-10-20 07:04:57,055 INFO L594 BuchiCegarLoop]: Abstraction has 53 states and 70 transitions. [2020-10-20 07:04:57,055 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-20 07:04:57,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 70 transitions. [2020-10-20 07:04:57,055 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 07:04:57,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:57,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:57,056 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:57,056 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:57,056 INFO L794 eck$LassoCheckResult]: Stem: 1401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1396#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 1384#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 1385#L16 assume !!(f_~k~0 <= 1073741823); 1386#L19-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1390#L19-1 assume !(f_~z~0 < f_~k~0); 1389#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1387#L6 assume !(0 == __VERIFIER_assert_~cond); 1388#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1402#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1424#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1406#L24 assume 0 != f_~c~0 % 256; 1407#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1422#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1421#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1420#L24-2 [2020-10-20 07:04:57,056 INFO L796 eck$LassoCheckResult]: Loop: 1420#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1419#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1420#L24-2 [2020-10-20 07:04:57,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:57,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1768176638, now seen corresponding path program 3 times [2020-10-20 07:04:57,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:57,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353362880] [2020-10-20 07:04:57,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:57,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:57,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:57,077 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:57,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:57,078 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 4 times [2020-10-20 07:04:57,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:57,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116324126] [2020-10-20 07:04:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:57,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:57,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:57,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:57,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:57,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1589298715, now seen corresponding path program 4 times [2020-10-20 07:04:57,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:57,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424672814] [2020-10-20 07:04:57,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:57,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:57,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:57,104 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:57,526 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-20 07:04:57,644 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-20 07:04:57,646 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:57,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:57,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:57,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:57,646 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:57,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:57,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:57,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:57,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration10_Lasso [2020-10-20 07:04:57,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:57,647 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:57,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:57,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:58,134 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:58,135 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:58,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:58,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:58,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 07:04:58,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:58,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:58,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:58,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 07:04:58,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 07:04:58,147 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 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:58,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:58,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:58,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:58,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:58,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:58,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:58,171 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:58,175 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 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:58,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:58,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:58,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:58,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:58,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:58,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:58,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:58,203 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 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:58,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:58,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:58,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:58,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:58,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:58,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:58,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:58,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:58,248 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-20 07:04:58,248 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:58,252 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:58,253 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:58,254 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:58,254 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2020-10-20 07:04:58,291 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:58,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:58,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:58,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:58,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:58,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:58,362 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:58,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-10-20 07:04:58,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 61 states and 78 transitions. Complement of second has 6 states. [2020-10-20 07:04:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:58,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 07:04:58,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:04:58,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:58,406 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:04:58,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:58,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:58,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:58,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:58,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:58,464 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:58,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-10-20 07:04:58,504 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 61 states and 78 transitions. Complement of second has 6 states. [2020-10-20 07:04:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-20 07:04:58,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:04:58,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:58,507 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:04:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:58,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:58,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:58,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:58,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:04:58,571 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:04:58,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-10-20 07:04:58,616 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 64 states and 83 transitions. Complement of second has 5 states. [2020-10-20 07:04:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:04:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:04:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-10-20 07:04:58,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:04:58,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:58,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-20 07:04:58,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:58,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-20 07:04:58,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:04:58,619 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 83 transitions. [2020-10-20 07:04:58,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:58,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 28 states and 36 transitions. [2020-10-20 07:04:58,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-20 07:04:58,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-20 07:04:58,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2020-10-20 07:04:58,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 07:04:58,621 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-20 07:04:58,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2020-10-20 07:04:58,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-20 07:04:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-20 07:04:58,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-20 07:04:58,623 INFO L714 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-20 07:04:58,623 INFO L594 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-20 07:04:58,623 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-20 07:04:58,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2020-10-20 07:04:58,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 07:04:58,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 07:04:58,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 07:04:58,625 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 07:04:58,625 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 07:04:58,625 INFO L794 eck$LassoCheckResult]: Stem: 1861#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1851#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 1852#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 1853#L16-1 assume !!(f_~k~0 <= 1073741823); 1854#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1855#L19-4 assume !(f_~z~0 < f_~k~0); 1856#L19-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1868#L6-3 assume !(0 == __VERIFIER_assert_~cond); 1864#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1865#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1878#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1877#L24-3 assume 0 != f_~c~0 % 256; 1874#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet11 % 256;havoc f_#t~nondet11;f_~z~0 := f_~z~0 - 1; 1873#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1871#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1870#L24-5 [2020-10-20 07:04:58,625 INFO L796 eck$LassoCheckResult]: Loop: 1870#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet10;havoc f_#t~nondet10; 1869#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1870#L24-5 [2020-10-20 07:04:58,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:58,625 INFO L82 PathProgramCache]: Analyzing trace with hash -379763215, now seen corresponding path program 3 times [2020-10-20 07:04:58,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:58,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670377218] [2020-10-20 07:04:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:58,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:58,641 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:58,644 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:58,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 3 times [2020-10-20 07:04:58,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:58,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518415913] [2020-10-20 07:04:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:58,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:58,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:58,649 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:58,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:58,649 INFO L82 PathProgramCache]: Analyzing trace with hash 119773560, now seen corresponding path program 4 times [2020-10-20 07:04:58,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 07:04:58,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081931233] [2020-10-20 07:04:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 07:04:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:58,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 07:04:58,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 07:04:58,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 07:04:59,073 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-20 07:04:59,187 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-20 07:04:59,189 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 07:04:59,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 07:04:59,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 07:04:59,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 07:04:59,190 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 07:04:59,190 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:59,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 07:04:59,190 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 07:04:59,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration11_Lasso [2020-10-20 07:04:59,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 07:04:59,190 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 07:04:59,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 07:04:59,691 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 07:04:59,691 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:59,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:59,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:59,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:59,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:59,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:59,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:59,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:59,844 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 130 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:59,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 07:04:59,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 07:04:59,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 07:04:59,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 07:04:59,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 07:04:59,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 07:04:59,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 07:04:59,879 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 07:04:59,885 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-20 07:04:59,885 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 07:04:59,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 07:04:59,890 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 07:04:59,890 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 07:04:59,890 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2020-10-20 07:04:59,935 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-20 07:04:59,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:04:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:59,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:04:59,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:04:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:04:59,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:04:59,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:05:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:05:00,003 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:05:00,003 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-10-20 07:05:00,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 36 states and 44 transitions. Complement of second has 6 states. [2020-10-20 07:05:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:05:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:05:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-20 07:05:00,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:05:00,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:05:00,039 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:05:00,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:05:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:05:00,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:05:00,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:05:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:05:00,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:05:00,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:05:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:05:00,104 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:05:00,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-10-20 07:05:00,134 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 36 states and 44 transitions. Complement of second has 6 states. [2020-10-20 07:05:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:05:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:05:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-20 07:05:00,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:05:00,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:05:00,136 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 07:05:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 07:05:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:05:00,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 07:05:00,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:05:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 07:05:00,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 07:05:00,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 07:05:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 07:05:00,206 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 07:05:00,206 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-10-20 07:05:00,239 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 39 states and 49 transitions. Complement of second has 5 states. [2020-10-20 07:05:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 07:05:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 07:05:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-20 07:05:00,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 07:05:00,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:05:00,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-20 07:05:00,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:05:00,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-20 07:05:00,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 07:05:00,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2020-10-20 07:05:00,243 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:05:00,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2020-10-20 07:05:00,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 07:05:00,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 07:05:00,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 07:05:00,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 07:05:00,243 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:05:00,244 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:05:00,244 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 07:05:00,244 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-20 07:05:00,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 07:05:00,244 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 07:05:00,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 07:05:00,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 07:05:00 BoogieIcfgContainer [2020-10-20 07:05:00,251 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 07:05:00,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 07:05:00,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 07:05:00,252 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 07:05:00,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 07:04:42" (3/4) ... [2020-10-20 07:05:00,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 07:05:00,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 07:05:00,257 INFO L168 Benchmark]: Toolchain (without parser) took 18262.81 ms. Allocated memory was 42.5 MB in the beginning and 118.0 MB in the end (delta: 75.5 MB). Free memory was 23.4 MB in the beginning and 29.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,257 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 32.0 MB. Free memory was 10.6 MB in the beginning and 10.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.42 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 22.6 MB in the beginning and 24.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 43.0 MB. Free memory was 24.6 MB in the beginning and 22.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,258 INFO L168 Benchmark]: Boogie Preprocessor took 24.57 ms. Allocated memory is still 43.0 MB. Free memory was 22.8 MB in the beginning and 21.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,259 INFO L168 Benchmark]: RCFGBuilder took 306.64 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 21.3 MB in the beginning and 24.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,259 INFO L168 Benchmark]: BuchiAutomizer took 17583.15 ms. Allocated memory was 45.1 MB in the beginning and 118.0 MB in the end (delta: 72.9 MB). Free memory was 24.2 MB in the beginning and 31.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 65.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,259 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 118.0 MB. Free memory was 31.4 MB in the beginning and 29.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 07:05:00,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 32.0 MB. Free memory was 10.6 MB in the beginning and 10.6 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 283.42 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 22.6 MB in the beginning and 24.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 43.0 MB. Free memory was 24.6 MB in the beginning and 22.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 24.57 ms. Allocated memory is still 43.0 MB. Free memory was 22.8 MB in the beginning and 21.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 306.64 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 21.3 MB in the beginning and 24.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 17583.15 ms. Allocated memory was 45.1 MB in the beginning and 118.0 MB in the end (delta: 72.9 MB). Free memory was 24.2 MB in the beginning and 31.4 MB in the end (delta: -7.2 MB). Peak memory consumption was 65.7 MB. Max. memory is 14.3 GB. * Witness Printer took 4.19 ms. Allocated memory is still 118.0 MB. Free memory was 31.4 MB in the beginning and 29.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.5s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 15.4s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 53 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 262 SDtfs, 445 SDslu, 108 SDs, 0 SdLazy, 164 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax100 hnf97 lsp53 ukn56 mio100 lsp64 div348 bol100 ite100 ukn100 eq142 hnf46 smp85 dnf100 smp100 tf102 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 63ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...