./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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 0.1.25-906a4fb [2020-10-19 19:11:29,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:11:29,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:11:29,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:11:29,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:11:29,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:11:29,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:11:29,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:11:29,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:11:29,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:11:29,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:11:29,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:11:29,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:11:29,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:11:29,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:11:29,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:11:29,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:11:29,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:11:29,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:11:29,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:11:29,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:11:29,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:11:29,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:11:29,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:11:29,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:11:29,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:11:29,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:11:29,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:11:29,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:11:29,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:11:29,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:11:29,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:11:29,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:11:29,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:11:29,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:11:29,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:11:29,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:11:29,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:11:29,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:11:29,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:11:29,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:11:29,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:11:29,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:11:29,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:11:29,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:11:29,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:11:29,192 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:11:29,192 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:11:29,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:11:29,192 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:11:29,192 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:11:29,192 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:11:29,193 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:11:29,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:11:29,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:11:29,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:11:29,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:11:29,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:11:29,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:11:29,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:11:29,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:11:29,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:11:29,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:11:29,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:11:29,200 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:11:29,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:11:29,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:11:29,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:11:29,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:11:29,201 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:11:29,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:11:29,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:11:29,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:11:29,203 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:11:29,205 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:11:29,205 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 [2020-10-19 19:11:29,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:11:29,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:11:29,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:11:29,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:11:29,556 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:11:29,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex01-1.c [2020-10-19 19:11:29,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58a7f32b4/b516dd6166474c5eb568cef095fbf70d/FLAG4ef71ee24 [2020-10-19 19:11:30,105 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:11:30,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex01-1.c [2020-10-19 19:11:30,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58a7f32b4/b516dd6166474c5eb568cef095fbf70d/FLAG4ef71ee24 [2020-10-19 19:11:30,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58a7f32b4/b516dd6166474c5eb568cef095fbf70d [2020-10-19 19:11:30,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:11:30,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:11:30,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:11:30,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:11:30,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:11:30,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142610ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30, skipping insertion in model container [2020-10-19 19:11:30,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:11:30,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:11:30,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:11:30,772 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:11:30,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:11:30,804 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:11:30,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30 WrapperNode [2020-10-19 19:11:30,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:11:30,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:11:30,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:11:30,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:11:30,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:11:30,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:11:30,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:11:30,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:11:30,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (1/1) ... [2020-10-19 19:11:30,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:11:30,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:11:30,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:11:30,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:11:30,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (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 [2020-10-19 19:11:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:11:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:11:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:11:31,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:11:31,291 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:11:31,292 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-19 19:11:31,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:31 BoogieIcfgContainer [2020-10-19 19:11:31,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:11:31,294 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:11:31,295 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:11:31,298 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:11:31,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:31,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:11:30" (1/3) ... [2020-10-19 19:11:31,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56d3ffb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:11:31, skipping insertion in model container [2020-10-19 19:11:31,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:31,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:11:30" (2/3) ... [2020-10-19 19:11:31,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56d3ffb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:11:31, skipping insertion in model container [2020-10-19 19:11:31,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:11:31,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:31" (3/3) ... [2020-10-19 19:11:31,305 INFO L373 chiAutomizerObserver]: Analyzing ICFG trex01-1.c [2020-10-19 19:11:31,393 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:11:31,394 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:11:31,394 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:11:31,394 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:11:31,394 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:11:31,394 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:11:31,395 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:11:31,395 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:11:31,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-19 19:11:31,460 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-19 19:11:31,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:31,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:31,466 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 19:11:31,467 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 19:11:31,467 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:11:31,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-19 19:11:31,470 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-19 19:11:31,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:31,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:31,471 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 19:11:31,471 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 19:11:31,479 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 18#L37true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 4#L16true assume !!(f_~k~0 <= 1073741823); 21#L19-1true [2020-10-19 19:11:31,480 INFO L796 eck$LassoCheckResult]: Loop: 21#L19-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 21#L19-1true [2020-10-19 19:11:31,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:31,487 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2020-10-19 19:11:31,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:31,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476434703] [2020-10-19 19:11:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:31,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:31,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:31,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:31,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:31,662 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-19 19:11:31,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:31,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463230615] [2020-10-19 19:11:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:31,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:31,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:31,674 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:31,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:31,676 INFO L82 PathProgramCache]: Analyzing trace with hash 28693867, now seen corresponding path program 1 times [2020-10-19 19:11:31,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:31,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412850232] [2020-10-19 19:11:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:31,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:31,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:31,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:31,993 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-19 19:11:32,120 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:32,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:32,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:32,122 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:32,122 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:32,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:32,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:32,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:32,123 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration1_Lasso [2020-10-19 19:11:32,123 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:32,123 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:32,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:32,658 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:32,664 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) [2020-10-19 19:11:32,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:32,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:32,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:32,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:32,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:32,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:32,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:32,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:32,682 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) [2020-10-19 19:11:32,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:32,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:32,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:32,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:32,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:32,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:32,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:32,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:32,736 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) [2020-10-19 19:11:32,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:32,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:32,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:32,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:32,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:32,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:32,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:32,787 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 [2020-10-19 19:11:32,794 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:32,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:32,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:32,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:32,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:32,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:32,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:32,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:32,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:32,878 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-19 19:11:32,879 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) [2020-10-19 19:11:32,885 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:32,891 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:32,892 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:32,893 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] [2020-10-19 19:11:32,958 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:33,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 19:11:33,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:33,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:33,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:33,078 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 [2020-10-19 19:11:33,081 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2020-10-19 19:11:33,177 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. [2020-10-19 19:11:33,178 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 [2020-10-19 19:11:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:11:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2020-10-19 19:11:33,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-19 19:11:33,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:33,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 19:11:33,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:33,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 19:11:33,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:33,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 100 transitions. [2020-10-19 19:11:33,194 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2020-10-19 19:11:33,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 24 states and 32 transitions. [2020-10-19 19:11:33,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-19 19:11:33,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-19 19:11:33,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2020-10-19 19:11:33,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:33,204 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2020-10-19 19:11:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2020-10-19 19:11:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2020-10-19 19:11:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 19:11:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2020-10-19 19:11:33,244 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-19 19:11:33,244 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2020-10-19 19:11:33,245 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:11:33,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2020-10-19 19:11:33,246 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2020-10-19 19:11:33,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:33,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:33,247 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 19:11:33,247 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 19:11:33,248 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 187#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 178#L37 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 175#L16-1 assume !!(f_~k~0 <= 1073741823); 176#L19-4 [2020-10-19 19:11:33,248 INFO L796 eck$LassoCheckResult]: Loop: 176#L19-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 176#L19-4 [2020-10-19 19:11:33,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:33,249 INFO L82 PathProgramCache]: Analyzing trace with hash 927240, now seen corresponding path program 1 times [2020-10-19 19:11:33,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:33,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079452961] [2020-10-19 19:11:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:33,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:33,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:33,307 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:33,310 INFO L82 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 1 times [2020-10-19 19:11:33,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:33,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990284297] [2020-10-19 19:11:33,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:33,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:33,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:33,332 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:33,334 INFO L82 PathProgramCache]: Analyzing trace with hash 28744510, now seen corresponding path program 1 times [2020-10-19 19:11:33,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:33,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657461994] [2020-10-19 19:11:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:33,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:33,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:33,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:33,641 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-19 19:11:33,744 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:33,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:33,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:33,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:33,745 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:33,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:33,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:33,746 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:33,746 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration2_Lasso [2020-10-19 19:11:33,746 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:33,746 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:33,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:33,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:34,185 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:34,186 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) [2020-10-19 19:11:34,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,204 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) [2020-10-19 19:11:34,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:34,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:34,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:34,316 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,358 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) [2020-10-19 19:11:34,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:34,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:34,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:34,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:34,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:34,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:34,470 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 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 [2020-10-19 19:11:34,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:34,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:34,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:34,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 19:11:34,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,544 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 [2020-10-19 19:11:34,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,620 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) [2020-10-19 19:11:34,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,690 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) [2020-10-19 19:11:34,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,757 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 [2020-10-19 19:11:34,761 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) [2020-10-19 19:11:34,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,819 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,854 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 [2020-10-19 19:11:34,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,863 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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:34,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,913 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 [2020-10-19 19:11:34,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 19:11:34,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:34,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:34,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:34,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:34,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:34,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:34,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:34,985 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 [2020-10-19 19:11:35,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:35,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:35,018 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 [2020-10-19 19:11:35,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:35,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:35,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:35,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:35,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:35,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:35,088 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 [2020-10-19 19:11:35,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:35,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:35,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:35,125 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 [2020-10-19 19:11:35,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:35,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:35,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:35,154 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 [2020-10-19 19:11:35,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:35,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:35,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:35,182 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 [2020-10-19 19:11:35,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:35,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:35,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:35,214 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 [2020-10-19 19:11:35,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:35,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:35,244 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) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:35,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:35,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:35,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:35,311 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 [2020-10-19 19:11:35,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:35,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:35,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:35,320 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 [2020-10-19 19:11:35,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,359 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:35,359 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:35,362 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 [2020-10-19 19:11:35,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:35,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:35,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:35,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:35,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:35,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:35,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:35,399 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:35,414 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 19:11:35,414 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) [2020-10-19 19:11:35,418 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 [2020-10-19 19:11:35,421 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:35,422 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:35,422 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] [2020-10-19 19:11:35,482 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:35,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:35,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 19:11:35,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:35,536 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:35,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:35,537 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 [2020-10-19 19:11:35,537 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-10-19 19:11:35,586 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. [2020-10-19 19:11:35,587 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 [2020-10-19 19:11:35,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:11:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-19 19:11:35,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-19 19:11:35,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:35,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 19:11:35,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:35,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 19:11:35,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:35,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2020-10-19 19:11:35,592 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2020-10-19 19:11:35,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 34 transitions. [2020-10-19 19:11:35,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-10-19 19:11:35,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-19 19:11:35,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2020-10-19 19:11:35,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:35,595 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2020-10-19 19:11:35,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2020-10-19 19:11:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2020-10-19 19:11:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-19 19:11:35,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-10-19 19:11:35,599 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-19 19:11:35,599 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-10-19 19:11:35,599 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:11:35,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-10-19 19:11:35,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:35,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:35,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:35,601 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:35,602 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:35,602 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 310#L-1 havoc main_#res;havoc main_#t~nondet12, main_~c~1;main_~c~1 := main_#t~nondet12;havoc main_#t~nondet12; 301#L37 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet7, f_#t~nondet8, f_#t~nondet9, f_#t~nondet10, f_#t~nondet11, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet7;havoc f_#t~nondet7;f_~y~0 := f_#t~nondet8;havoc f_#t~nondet8;f_~k~0 := f_#t~nondet9;havoc f_#t~nondet9;f_~z~0 := 1; 302#L16 assume !!(f_~k~0 <= 1073741823); 303#L19-1 assume !(f_~z~0 < f_~k~0); 306#L19-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 304#L6 assume !(0 == __VERIFIER_assert_~cond); 305#L24-2 [2020-10-19 19:11:35,602 INFO L796 eck$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 [2020-10-19 19:11:35,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:35,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1805001234, now seen corresponding path program 1 times [2020-10-19 19:11:35,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:35,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342611913] [2020-10-19 19:11:35,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:35,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342611913] [2020-10-19 19:11:35,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:11:35,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:11:35,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343846805] [2020-10-19 19:11:35,706 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 19:11:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:35,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 1 times [2020-10-19 19:11:35,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:35,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904055336] [2020-10-19 19:11:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,730 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:35,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:11:35,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 19:11:35,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 19:11:35,765 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-10-19 19:11:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:11:35,826 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-10-19 19:11:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 19:11:35,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2020-10-19 19:11:35,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:35,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 24 transitions. [2020-10-19 19:11:35,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-10-19 19:11:35,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-19 19:11:35,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-10-19 19:11:35,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:35,835 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 19:11:35,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-10-19 19:11:35,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-19 19:11:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-19 19:11:35,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-10-19 19:11:35,839 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 19:11:35,839 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 19:11:35,839 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 19:11:35,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-10-19 19:11:35,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:35,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:35,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:35,842 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:35,842 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:35,842 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 [2020-10-19 19:11:35,843 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 [2020-10-19 19:11:35,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:35,843 INFO L82 PathProgramCache]: Analyzing trace with hash 120516975, now seen corresponding path program 1 times [2020-10-19 19:11:35,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:35,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355105907] [2020-10-19 19:11:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,865 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,879 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:35,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:35,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 2 times [2020-10-19 19:11:35,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:35,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030535693] [2020-10-19 19:11:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:35,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:35,889 INFO L82 PathProgramCache]: Analyzing trace with hash -147302634, now seen corresponding path program 1 times [2020-10-19 19:11:35,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:35,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753725503] [2020-10-19 19:11:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:35,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:35,919 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:36,181 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-10-19 19:11:36,381 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-19 19:11:36,385 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:36,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:36,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:36,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:36,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:36,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:36,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:36,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:36,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration4_Lasso [2020-10-19 19:11:36,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:36,386 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:36,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:36,885 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:36,886 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) [2020-10-19 19:11:36,899 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 [2020-10-19 19:11:36,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:36,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:36,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:36,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:36,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:36,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:36,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:36,903 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 [2020-10-19 19:11:36,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:36,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:36,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:36,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:36,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:36,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:36,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:36,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 19:11:36,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:36,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:36,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:36,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:36,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:36,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:36,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:36,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:36,961 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 [2020-10-19 19:11:36,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:36,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:36,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:36,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:36,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:36,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:36,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:36,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:36,989 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 [2020-10-19 19:11:37,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:37,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:37,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:37,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:37,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:37,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:37,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:37,019 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 [2020-10-19 19:11:37,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:37,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:37,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:37,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:37,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:37,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:37,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:37,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:37,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:37,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:37,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:37,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:37,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:37,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:37,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:37,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:37,096 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 [2020-10-19 19:11:37,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:37,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:37,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:37,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:37,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:37,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:37,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:37,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:37,128 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) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:37,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:37,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:37,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:37,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:37,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:37,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:37,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:37,170 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:37,176 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 19:11:37,176 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) [2020-10-19 19:11:37,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:37,208 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:37,208 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:37,208 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] [2020-10-19 19:11:37,263 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:37,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:37,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:37,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:37,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:37,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:37,342 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 [2020-10-19 19:11:37,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-19 19:11:37,386 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. [2020-10-19 19:11:37,387 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 [2020-10-19 19:11:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-10-19 19:11:37,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-19 19:11:37,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:37,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-19 19:11:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:37,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-19 19:11:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:37,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2020-10-19 19:11:37,390 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:37,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 31 transitions. [2020-10-19 19:11:37,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-10-19 19:11:37,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-19 19:11:37,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-10-19 19:11:37,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:37,397 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-19 19:11:37,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-10-19 19:11:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-19 19:11:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-19 19:11:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2020-10-19 19:11:37,403 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-10-19 19:11:37,403 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-10-19 19:11:37,404 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 19:11:37,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2020-10-19 19:11:37,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:37,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:37,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:37,406 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:37,406 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:37,407 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 [2020-10-19 19:11:37,407 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 [2020-10-19 19:11:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:37,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1629273231, now seen corresponding path program 1 times [2020-10-19 19:11:37,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:37,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926380810] [2020-10-19 19:11:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:37,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:37,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:37,458 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:37,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:37,463 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 1 times [2020-10-19 19:11:37,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:37,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220466507] [2020-10-19 19:11:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:37,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:37,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:37,480 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:37,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1931485034, now seen corresponding path program 1 times [2020-10-19 19:11:37,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:37,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80669765] [2020-10-19 19:11:37,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:37,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:37,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:37,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:37,731 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-10-19 19:11:37,908 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-19 19:11:37,912 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:37,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:37,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:37,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:37,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:37,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:37,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:37,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:37,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration5_Lasso [2020-10-19 19:11:37,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:37,913 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:37,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:37,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:37,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:38,348 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:38,349 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) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:38,357 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) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:38,386 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) [2020-10-19 19:11:38,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 [2020-10-19 19:11:38,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:38,416 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 [2020-10-19 19:11:38,442 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 [2020-10-19 19:11:38,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:38,448 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 [2020-10-19 19:11:38,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:38,482 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) [2020-10-19 19:11:38,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,529 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) [2020-10-19 19:11:38,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,585 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) [2020-10-19 19:11:38,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,639 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) [2020-10-19 19:11:38,681 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 [2020-10-19 19:11:38,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,694 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) [2020-10-19 19:11:38,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,740 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,747 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:38,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:38,799 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) [2020-10-19 19:11:38,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,840 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 [2020-10-19 19:11:38,845 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) [2020-10-19 19:11:38,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,893 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 [2020-10-19 19:11:38,899 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) [2020-10-19 19:11:38,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,945 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 [2020-10-19 19:11:38,949 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) [2020-10-19 19:11:38,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:38,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:38,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:38,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:38,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:38,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:38,991 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 [2020-10-19 19:11:38,995 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) [2020-10-19 19:11:39,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:39,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:39,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:39,044 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 [2020-10-19 19:11:39,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:39,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:39,076 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) [2020-10-19 19:11:39,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:39,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:39,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:39,126 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 [2020-10-19 19:11:39,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:39,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:39,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:39,158 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 [2020-10-19 19:11:39,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:39,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:39,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:39,184 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 [2020-10-19 19:11:39,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:39,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:39,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:39,211 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 [2020-10-19 19:11:39,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:39,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:39,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:39,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:39,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:39,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:39,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:39,251 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:39,259 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 19:11:39,259 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) [2020-10-19 19:11:39,262 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 [2020-10-19 19:11:39,264 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:39,265 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:39,265 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] [2020-10-19 19:11:39,336 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:39,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:39,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:39,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:39,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:39,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:39,420 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 [2020-10-19 19:11:39,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 12 Second operand 4 states. [2020-10-19 19:11:39,464 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. [2020-10-19 19:11:39,464 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 [2020-10-19 19:11:39,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:39,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-10-19 19:11:39,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2020-10-19 19:11:39,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:39,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-19 19:11:39,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:39,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-19 19:11:39,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:39,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2020-10-19 19:11:39,467 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:39,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 37 transitions. [2020-10-19 19:11:39,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-19 19:11:39,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-19 19:11:39,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2020-10-19 19:11:39,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:39,468 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2020-10-19 19:11:39,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2020-10-19 19:11:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-10-19 19:11:39,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-19 19:11:39,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-19 19:11:39,471 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-19 19:11:39,471 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-19 19:11:39,471 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 19:11:39,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2020-10-19 19:11:39,472 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-10-19 19:11:39,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:39,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:39,473 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:39,473 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:39,473 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 [2020-10-19 19:11:39,473 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 [2020-10-19 19:11:39,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:39,473 INFO L82 PathProgramCache]: Analyzing trace with hash -147302638, now seen corresponding path program 1 times [2020-10-19 19:11:39,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:39,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108164171] [2020-10-19 19:11:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:39,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:39,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:39,516 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:39,517 INFO L82 PathProgramCache]: Analyzing trace with hash 77298, now seen corresponding path program 1 times [2020-10-19 19:11:39,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:39,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701431343] [2020-10-19 19:11:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:39,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:39,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:39,539 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:39,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:39,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1163735361, now seen corresponding path program 1 times [2020-10-19 19:11:39,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:39,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73673390] [2020-10-19 19:11:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:39,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:39,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:39,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:39,647 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:39,647 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:39,647 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:39,647 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:39,647 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:11:39,647 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:39,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:39,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:39,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Loop [2020-10-19 19:11:39,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:39,648 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:39,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:39,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:39,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:39,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:39,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:39,774 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) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:39,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:39,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:39,790 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:39,790 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) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:39,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:39,813 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 [2020-10-19 19:11:39,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:11:39,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:39,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:39,857 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) [2020-10-19 19:11:39,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:39,881 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:39,891 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:39,891 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 [2020-10-19 19:11:39,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:39,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:39,918 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:39,918 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: [] [2020-10-19 19:11:40,220 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2020-10-19 19:11:40,452 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-10-19 19:11:40,456 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:40,456 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:40,456 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:40,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:40,456 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:40,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:40,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:40,457 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:40,457 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration6_Lasso [2020-10-19 19:11:40,457 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:40,457 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:40,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:40,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:41,064 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:41,064 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 [2020-10-19 19:11:41,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,075 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 [2020-10-19 19:11:41,099 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 [2020-10-19 19:11:41,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,104 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 [2020-10-19 19:11:41,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,135 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) [2020-10-19 19:11:41,171 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 [2020-10-19 19:11:41,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:41,180 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 [2020-10-19 19:11:41,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:41,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:41,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:41,208 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 [2020-10-19 19:11:41,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:41,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:41,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:41,233 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 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 [2020-10-19 19:11:41,257 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 [2020-10-19 19:11:41,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:41,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:41,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:41,260 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 [2020-10-19 19:11:41,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,295 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) [2020-10-19 19:11:41,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:41,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,324 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 [2020-10-19 19:11:41,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,357 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 [2020-10-19 19:11:41,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:41,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:41,417 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 [2020-10-19 19:11:41,445 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 [2020-10-19 19:11:41,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:41,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,483 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 [2020-10-19 19:11:41,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 19:11:41,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,537 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,540 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 [2020-10-19 19:11:41,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,574 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 [2020-10-19 19:11:41,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,601 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,605 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) [2020-10-19 19:11:41,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:41,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,651 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 [2020-10-19 19:11:41,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,684 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 [2020-10-19 19:11:41,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,710 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,710 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 19:11:41,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:41,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:41,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:41,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:41,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:41,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:41,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:41,750 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:41,755 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 19:11:41,755 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) Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:41,759 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:41,761 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:41,762 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:41,762 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] [2020-10-19 19:11:41,806 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:41,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:41,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:41,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:41,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:41,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:41,896 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 [2020-10-19 19:11:41,896 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 15 Second operand 5 states. [2020-10-19 19:11:41,949 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. [2020-10-19 19:11:41,952 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 [2020-10-19 19:11:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 19:11:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-19 19:11:41,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-19 19:11:41,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:41,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-19 19:11:41,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:41,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-19 19:11:41,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:41,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 49 transitions. [2020-10-19 19:11:41,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-19 19:11:41,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 44 transitions. [2020-10-19 19:11:41,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-19 19:11:41,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-19 19:11:41,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2020-10-19 19:11:41,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:41,957 INFO L691 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2020-10-19 19:11:41,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2020-10-19 19:11:41,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-19 19:11:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-19 19:11:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-10-19 19:11:41,959 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-10-19 19:11:41,960 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-10-19 19:11:41,960 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 19:11:41,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2020-10-19 19:11:41,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-10-19 19:11:41,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:41,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:41,961 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:41,961 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:11:41,961 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 [2020-10-19 19:11:41,961 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 [2020-10-19 19:11:41,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:41,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1931485038, now seen corresponding path program 1 times [2020-10-19 19:11:41,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:41,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808898360] [2020-10-19 19:11:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:41,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:41,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:41,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:41,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:41,984 INFO L82 PathProgramCache]: Analyzing trace with hash 127941, now seen corresponding path program 1 times [2020-10-19 19:11:41,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:41,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697506417] [2020-10-19 19:11:41,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:41,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:41,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:41,992 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:41,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:41,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1193804396, now seen corresponding path program 1 times [2020-10-19 19:11:41,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:41,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915756736] [2020-10-19 19:11:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:42,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:42,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:42,018 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:42,055 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:42,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:42,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:42,056 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:42,056 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:11:42,056 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:42,056 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:42,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:42,056 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Loop [2020-10-19 19:11:42,056 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:42,057 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:42,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,196 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:42,196 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) Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:42,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:42,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:42,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:42,212 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 [2020-10-19 19:11:42,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:42,240 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 [2020-10-19 19:11:42,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:11:42,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:42,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:42,277 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 [2020-10-19 19:11:42,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:42,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:42,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:42,307 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 [2020-10-19 19:11:42,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:11:42,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 19:11:42,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:11:42,333 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: [] [2020-10-19 19:11:42,617 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-19 19:11:42,846 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-19 19:11:42,848 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:42,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:42,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:42,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:42,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:42,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:42,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:42,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:42,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration7_Lasso [2020-10-19 19:11:42,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:42,849 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:42,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:42,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:43,380 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:43,381 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 [2020-10-19 19:11:43,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:43,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:43,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:43,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:43,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:43,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:43,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:43,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:43,419 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-19 19:11:43,419 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) [2020-10-19 19:11:43,428 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 [2020-10-19 19:11:43,436 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-10-19 19:11:43,436 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:43,436 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] [2020-10-19 19:11:43,503 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-19 19:11:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:43,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:43,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:43,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:43,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:43,612 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 [2020-10-19 19:11:43,613 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 18 Second operand 5 states. [2020-10-19 19:11:43,668 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. [2020-10-19 19:11:43,669 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 [2020-10-19 19:11:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 19:11:43,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-19 19:11:43,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 3 letters. [2020-10-19 19:11:43,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:43,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 13 letters. Loop has 3 letters. [2020-10-19 19:11:43,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:43,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-19 19:11:43,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:43,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2020-10-19 19:11:43,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 19:11:43,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 51 transitions. [2020-10-19 19:11:43,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-10-19 19:11:43,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-10-19 19:11:43,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2020-10-19 19:11:43,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:43,673 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-10-19 19:11:43,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2020-10-19 19:11:43,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-10-19 19:11:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-19 19:11:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2020-10-19 19:11:43,676 INFO L714 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-10-19 19:11:43,676 INFO L594 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2020-10-19 19:11:43,676 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 19:11:43,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2020-10-19 19:11:43,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 19:11:43,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:43,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:43,677 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:43,677 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:43,677 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 [2020-10-19 19:11:43,678 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 [2020-10-19 19:11:43,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:43,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1163735365, now seen corresponding path program 1 times [2020-10-19 19:11:43,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:43,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929424585] [2020-10-19 19:11:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:43,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:43,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:43,706 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:43,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 3 times [2020-10-19 19:11:43,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:43,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967612404] [2020-10-19 19:11:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:43,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:43,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:43,713 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:43,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:43,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1658190188, now seen corresponding path program 2 times [2020-10-19 19:11:43,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:43,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822122377] [2020-10-19 19:11:43,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:43,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:43,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:43,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:44,176 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-10-19 19:11:44,468 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-19 19:11:44,472 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:44,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:44,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:44,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:44,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:44,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:44,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:44,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:44,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration8_Lasso [2020-10-19 19:11:44,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:44,473 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:44,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:44,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:45,012 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:45,012 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 [2020-10-19 19:11:45,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,027 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 [2020-10-19 19:11:45,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,056 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 [2020-10-19 19:11:45,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,085 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 [2020-10-19 19:11:45,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,115 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 [2020-10-19 19:11:45,137 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 [2020-10-19 19:11:45,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,146 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 [2020-10-19 19:11:45,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,176 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) Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:45,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,205 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 [2020-10-19 19:11:45,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,234 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 [2020-10-19 19:11:45,257 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 [2020-10-19 19:11:45,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,260 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,264 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 [2020-10-19 19:11:45,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,294 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 [2020-10-19 19:11:45,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,322 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 [2020-10-19 19:11:45,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,350 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) [2020-10-19 19:11:45,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:45,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,381 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 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 [2020-10-19 19:11:45,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,412 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 [2020-10-19 19:11:45,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,439 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,442 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 [2020-10-19 19:11:45,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:45,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:45,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:45,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:45,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:45,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:45,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:45,477 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:45,482 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 19:11:45,483 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 [2020-10-19 19:11:45,485 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:45,487 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:45,487 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:45,487 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] [2020-10-19 19:11:45,531 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:45,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:45,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:45,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:45,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:45,598 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 [2020-10-19 19:11:45,598 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-10-19 19:11:45,641 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. [2020-10-19 19:11:45,641 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 [2020-10-19 19:11:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-19 19:11:45,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-19 19:11:45,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:45,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:45,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:45,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2020-10-19 19:11:45,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:45,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 72 transitions. [2020-10-19 19:11:45,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 19:11:45,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 62 transitions. [2020-10-19 19:11:45,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-19 19:11:45,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-10-19 19:11:45,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2020-10-19 19:11:45,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:45,645 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-10-19 19:11:45,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2020-10-19 19:11:45,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-19 19:11:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-19 19:11:45,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-19 19:11:45,649 INFO L714 BuchiCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-19 19:11:45,649 INFO L594 BuchiCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-19 19:11:45,649 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-19 19:11:45,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 60 transitions. [2020-10-19 19:11:45,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 19:11:45,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:45,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:45,651 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:45,651 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:45,651 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 [2020-10-19 19:11:45,651 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 [2020-10-19 19:11:45,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:45,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1193804392, now seen corresponding path program 1 times [2020-10-19 19:11:45,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:45,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935733589] [2020-10-19 19:11:45,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:45,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:45,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:45,671 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:45,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:45,672 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 2 times [2020-10-19 19:11:45,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:45,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522248361] [2020-10-19 19:11:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:45,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:45,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:45,677 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash -489749665, now seen corresponding path program 2 times [2020-10-19 19:11:45,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:45,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348997692] [2020-10-19 19:11:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:45,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:45,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:45,697 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:46,081 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 107 [2020-10-19 19:11:46,350 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-10-19 19:11:46,352 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:46,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:46,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:46,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:46,353 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:46,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:46,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:46,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:46,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration9_Lasso [2020-10-19 19:11:46,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:46,353 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:46,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:46,858 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:46,858 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 [2020-10-19 19:11:46,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:46,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:46,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:46,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:46,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:46,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:46,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:46,867 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 [2020-10-19 19:11:46,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:46,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:46,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:46,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:46,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:46,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:46,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:46,901 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:46,907 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 19:11:46,908 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 [2020-10-19 19:11:46,910 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:46,911 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:46,912 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:46,912 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] [2020-10-19 19:11:46,955 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:46,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:46,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:47,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:47,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:47,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:47,026 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 [2020-10-19 19:11:47,026 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 60 transitions. cyclomatic complexity: 25 Second operand 4 states. [2020-10-19 19:11:47,068 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. [2020-10-19 19:11:47,071 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 [2020-10-19 19:11:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-19 19:11:47,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-19 19:11:47,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:47,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:47,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:47,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 13 letters. Loop has 4 letters. [2020-10-19 19:11:47,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:47,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2020-10-19 19:11:47,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 19:11:47,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 55 states and 72 transitions. [2020-10-19 19:11:47,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-10-19 19:11:47,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-19 19:11:47,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 72 transitions. [2020-10-19 19:11:47,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:47,078 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 72 transitions. [2020-10-19 19:11:47,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 72 transitions. [2020-10-19 19:11:47,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-10-19 19:11:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-19 19:11:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2020-10-19 19:11:47,084 INFO L714 BuchiCegarLoop]: Abstraction has 53 states and 70 transitions. [2020-10-19 19:11:47,084 INFO L594 BuchiCegarLoop]: Abstraction has 53 states and 70 transitions. [2020-10-19 19:11:47,084 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-19 19:11:47,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 70 transitions. [2020-10-19 19:11:47,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 19:11:47,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:47,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:47,088 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:47,088 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:47,088 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 [2020-10-19 19:11:47,088 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 [2020-10-19 19:11:47,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:47,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1768176638, now seen corresponding path program 3 times [2020-10-19 19:11:47,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:47,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776910282] [2020-10-19 19:11:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,132 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:47,133 INFO L82 PathProgramCache]: Analyzing trace with hash 2344, now seen corresponding path program 4 times [2020-10-19 19:11:47,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:47,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291223839] [2020-10-19 19:11:47,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,144 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:47,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:47,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1589298715, now seen corresponding path program 4 times [2020-10-19 19:11:47,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:47,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758021901] [2020-10-19 19:11:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:47,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:47,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:47,626 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-19 19:11:47,764 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-19 19:11:47,766 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:47,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:47,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:47,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:47,767 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:47,767 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:47,767 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:47,767 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:47,767 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration10_Lasso [2020-10-19 19:11:47,767 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:47,767 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:47,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:47,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:48,340 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:48,341 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 [2020-10-19 19:11:48,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:48,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:48,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:11:48,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:48,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:48,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:48,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:11:48,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:11:48,346 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:11:48,370 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 [2020-10-19 19:11:48,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:48,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:48,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:48,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:48,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:48,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:48,378 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 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 [2020-10-19 19:11:48,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:48,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:48,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:48,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:48,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:48,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:48,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:48,407 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 [2020-10-19 19:11:48,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:48,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:48,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:48,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:48,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:48,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:48,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:48,443 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:48,455 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-19 19:11:48,455 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 [2020-10-19 19:11:48,459 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:48,461 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:48,461 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:48,461 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] [2020-10-19 19:11:48,499 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:48,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:48,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:48,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:48,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:48,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:48,567 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 [2020-10-19 19:11:48,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-10-19 19:11:48,607 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. [2020-10-19 19:11:48,608 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 [2020-10-19 19:11:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:48,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-19 19:11:48,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:48,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:48,610 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 19:11:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:48,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:48,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:48,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:48,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:48,684 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 [2020-10-19 19:11:48,684 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-10-19 19:11:48,729 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. [2020-10-19 19:11:48,731 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 [2020-10-19 19:11:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2020-10-19 19:11:48,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:48,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:48,732 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 19:11:48,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:48,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:48,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:48,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:48,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:48,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:48,803 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 [2020-10-19 19:11:48,803 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 70 transitions. cyclomatic complexity: 29 Second operand 4 states. [2020-10-19 19:11:48,851 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. [2020-10-19 19:11:48,852 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 [2020-10-19 19:11:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-10-19 19:11:48,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:48,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:48,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-19 19:11:48,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:48,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-19 19:11:48,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:48,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 83 transitions. [2020-10-19 19:11:48,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 19:11:48,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 28 states and 36 transitions. [2020-10-19 19:11:48,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-19 19:11:48,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-19 19:11:48,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2020-10-19 19:11:48,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 19:11:48,857 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-19 19:11:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2020-10-19 19:11:48,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-19 19:11:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-19 19:11:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-10-19 19:11:48,859 INFO L714 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-19 19:11:48,860 INFO L594 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-10-19 19:11:48,860 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-19 19:11:48,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2020-10-19 19:11:48,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 19:11:48,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:11:48,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:11:48,861 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:11:48,861 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:11:48,861 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 [2020-10-19 19:11:48,861 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 [2020-10-19 19:11:48,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:48,862 INFO L82 PathProgramCache]: Analyzing trace with hash -379763215, now seen corresponding path program 3 times [2020-10-19 19:11:48,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:48,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848905918] [2020-10-19 19:11:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:48,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:48,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:48,880 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:48,881 INFO L82 PathProgramCache]: Analyzing trace with hash 3976, now seen corresponding path program 3 times [2020-10-19 19:11:48,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:48,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282332407] [2020-10-19 19:11:48,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:48,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:48,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:48,886 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:48,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:48,886 INFO L82 PathProgramCache]: Analyzing trace with hash 119773560, now seen corresponding path program 4 times [2020-10-19 19:11:48,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:11:48,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931622106] [2020-10-19 19:11:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:11:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:48,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:11:48,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:11:48,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:11:49,342 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2020-10-19 19:11:49,479 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-19 19:11:49,481 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:11:49,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:11:49,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:11:49,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:11:49,481 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:11:49,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:49,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:11:49,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:11:49,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex01-1.c_Iteration11_Lasso [2020-10-19 19:11:49,482 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:11:49,482 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:11:49,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:11:49,987 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:11:49,988 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 [2020-10-19 19:11:49,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:11:50,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:50,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:50,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:50,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:50,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:50,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:50,005 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) [2020-10-19 19:11:50,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:11:50,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:11:50,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:11:50,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:11:50,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:11:50,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:11:50,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 19:11:50,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:11:50,049 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 19:11:50,049 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 [2020-10-19 19:11:50,051 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:11:50,054 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 19:11:50,054 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:11:50,054 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] [2020-10-19 19:11:50,102 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-10-19 19:11:50,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:50,182 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 [2020-10-19 19:11:50,182 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-10-19 19:11:50,220 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. [2020-10-19 19:11:50,221 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 [2020-10-19 19:11:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-19 19:11:50,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:50,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,222 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 19:11:50,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:50,293 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 [2020-10-19 19:11:50,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-10-19 19:11:50,324 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. [2020-10-19 19:11:50,325 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 [2020-10-19 19:11:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-19 19:11:50,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:50,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,326 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 19:11:50,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:11:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:11:50,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 19:11:50,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:11:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:11:50,404 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 [2020-10-19 19:11:50,404 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-10-19 19:11:50,438 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. [2020-10-19 19:11:50,438 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 [2020-10-19 19:11:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 19:11:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-19 19:11:50,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 19:11:50,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-19 19:11:50,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-19 19:11:50,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:11:50,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2020-10-19 19:11:50,442 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:50,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2020-10-19 19:11:50,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:11:50,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:11:50,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:11:50,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:11:50,443 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:50,443 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:50,443 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:11:50,443 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-19 19:11:50,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:11:50,443 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:11:50,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:11:50,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:11:50 BoogieIcfgContainer [2020-10-19 19:11:50,451 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:11:50,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:11:50,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:11:50,452 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:11:50,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:11:31" (3/4) ... [2020-10-19 19:11:50,455 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:11:50,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:11:50,457 INFO L168 Benchmark]: Toolchain (without parser) took 19919.89 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 381.7 MB). Free memory was 955.9 MB in the beginning and 992.0 MB in the end (delta: -36.1 MB). Peak memory consumption was 345.6 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:50,457 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:50,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.90 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:50,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:50,458 INFO L168 Benchmark]: Boogie Preprocessor took 31.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:50,458 INFO L168 Benchmark]: RCFGBuilder took 346.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:50,459 INFO L168 Benchmark]: BuchiAutomizer took 19156.52 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 254.3 MB). Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 104.4 MB). Peak memory consumption was 358.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:11:50,459 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 1.4 GB. Free memory is still 992.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:11:50,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.90 ms. Allocated memory is still 1.0 GB. Free memory was 955.9 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 346.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 19156.52 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 254.3 MB). Free memory was 1.1 GB in the beginning and 992.0 MB in the end (delta: 104.4 MB). Peak memory consumption was 358.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.32 ms. Allocated memory is still 1.4 GB. Free memory is still 992.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 19.0s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 16.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.6s. 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: 59ms 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...