./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.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 cb222be331558739e1ed5b24e353128f45913f6a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:08:36,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:08:36,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:08:36,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:08:36,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:08:36,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:08:36,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:08:36,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:08:36,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:08:36,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:08:36,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:08:36,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:08:36,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:08:36,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:08:36,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:08:36,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:08:36,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:08:36,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:08:36,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:08:36,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:08:36,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:08:36,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:08:36,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:08:36,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:08:36,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:08:36,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:08:36,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:08:36,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:08:36,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:08:36,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:08:36,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:08:36,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:08:36,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:08:36,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:08:36,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:08:36,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:08:36,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:08:36,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:08:36,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:08:36,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:08:36,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:08:36,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:08:36,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:08:36,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:08:36,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:08:36,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:08:36,721 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:08:36,722 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:08:36,722 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:08:36,722 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:08:36,722 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:08:36,723 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:08:36,724 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:08:36,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:08:36,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:08:36,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:08:36,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:08:36,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:08:36,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:08:36,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:08:36,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:08:36,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:08:36,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:08:36,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:08:36,727 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:08:36,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:08:36,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:08:36,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:08:36,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:08:36,729 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:08:36,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:08:36,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:08:36,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:08:36,730 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:08:36,731 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:08:36,731 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 -> cb222be331558739e1ed5b24e353128f45913f6a [2020-10-20 08:08:36,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:08:36,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:08:36,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:08:36,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:08:36,973 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:08:36,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c [2020-10-20 08:08:37,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189fd45fc/87296021652a474c934f09650e5c490d/FLAGca85f2a8a [2020-10-20 08:08:37,591 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:08:37,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c [2020-10-20 08:08:37,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189fd45fc/87296021652a474c934f09650e5c490d/FLAGca85f2a8a [2020-10-20 08:08:37,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189fd45fc/87296021652a474c934f09650e5c490d [2020-10-20 08:08:37,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:08:37,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:08:37,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:08:37,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:08:37,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:08:37,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:08:37" (1/1) ... [2020-10-20 08:08:37,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e553f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:37, skipping insertion in model container [2020-10-20 08:08:37,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:08:37" (1/1) ... [2020-10-20 08:08:37,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:08:38,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:08:38,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:08:38,428 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:08:38,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:08:38,486 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:08:38,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38 WrapperNode [2020-10-20 08:08:38,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:08:38,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:08:38,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:08:38,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:08:38,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:08:38,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:08:38,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:08:38,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:08:38,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... [2020-10-20 08:08:38,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:08:38,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:08:38,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:08:38,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:08:38,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 08:08:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:08:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:08:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:08:39,234 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:08:39,235 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-10-20 08:08:39,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:08:39 BoogieIcfgContainer [2020-10-20 08:08:39,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:08:39,237 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:08:39,237 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:08:39,241 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:08:39,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:08:39,242 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:08:37" (1/3) ... [2020-10-20 08:08:39,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@349c3806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:08:39, skipping insertion in model container [2020-10-20 08:08:39,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:08:39,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:38" (2/3) ... [2020-10-20 08:08:39,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@349c3806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:08:39, skipping insertion in model container [2020-10-20 08:08:39,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:08:39,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:08:39" (3/3) ... [2020-10-20 08:08:39,246 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c [2020-10-20 08:08:39,295 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:08:39,295 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:08:39,295 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:08:39,296 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:08:39,296 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:08:39,296 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:08:39,297 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:08:39,297 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:08:39,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2020-10-20 08:08:39,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2020-10-20 08:08:39,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:39,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:39,359 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:39,359 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:39,359 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:08:39,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2020-10-20 08:08:39,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2020-10-20 08:08:39,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:39,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:39,370 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:39,370 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:39,378 INFO L794 eck$LassoCheckResult]: Stem: 36#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(47);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 13#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~ret29, main_#t~ret30, main_#t~post31, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~alive1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~alive2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~alive3~0 := main_#t~nondet28;havoc main_#t~nondet28;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 63#L207true assume !(0 == ~r1~0);init_~tmp~0 := 0; 79#L207-1true init_#res := init_~tmp~0; 55#L276true main_#t~ret29 := init_#res;main_~i2~0 := main_#t~ret29;havoc main_#t~ret29; 44#L323true assume 0 == main_~i2~0;assume false; 50#L323-2true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 57#L331-2true [2020-10-20 08:08:39,379 INFO L796 eck$LassoCheckResult]: Loop: 57#L331-2true assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 53#L104true assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 78#L108true assume !(node1_~m1~0 != ~nomsg~0); 76#L108-1true ~mode1~0 := 0; 46#L104-2true havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 38#L139true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 24#L142true assume !(node2_~m2~0 != ~nomsg~0); 21#L142-1true ~mode2~0 := 0; 11#L139-2true havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 61#L173true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 27#L176true assume !(node3_~m3~0 != ~nomsg~0); 26#L176-1true ~mode3~0 := 0; 60#L173-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 68#L284true assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 66#L284-1true check_#res := check_~tmp~1; 9#L296true main_#t~ret30 := check_#res;main_~c1~0 := main_#t~ret30;havoc main_#t~ret30;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 28#L355true assume !(0 == assert_~arg % 256); 75#L350true main_#t~post31 := main_~i2~0;main_~i2~0 := 1 + main_#t~post31;havoc main_#t~post31; 57#L331-2true [2020-10-20 08:08:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:39,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1898425706, now seen corresponding path program 1 times [2020-10-20 08:08:39,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:39,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51528710] [2020-10-20 08:08:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:39,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51528710] [2020-10-20 08:08:39,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:39,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 08:08:39,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221802926] [2020-10-20 08:08:39,579 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:08:39,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:39,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1437480252, now seen corresponding path program 1 times [2020-10-20 08:08:39,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:39,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672322204] [2020-10-20 08:08:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:39,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672322204] [2020-10-20 08:08:39,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:39,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:39,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858463364] [2020-10-20 08:08:39,726 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:08:39,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:39,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 08:08:39,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 08:08:39,755 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 2 states. [2020-10-20 08:08:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:39,768 INFO L93 Difference]: Finished difference Result 78 states and 125 transitions. [2020-10-20 08:08:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 08:08:39,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 125 transitions. [2020-10-20 08:08:39,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-10-20 08:08:39,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 73 states and 120 transitions. [2020-10-20 08:08:39,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2020-10-20 08:08:39,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2020-10-20 08:08:39,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 120 transitions. [2020-10-20 08:08:39,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:39,784 INFO L691 BuchiCegarLoop]: Abstraction has 73 states and 120 transitions. [2020-10-20 08:08:39,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 120 transitions. [2020-10-20 08:08:39,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 08:08:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 08:08:39,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 120 transitions. [2020-10-20 08:08:39,813 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 120 transitions. [2020-10-20 08:08:39,814 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 120 transitions. [2020-10-20 08:08:39,814 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:08:39,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 120 transitions. [2020-10-20 08:08:39,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-10-20 08:08:39,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:39,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:39,817 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:39,817 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:39,818 INFO L794 eck$LassoCheckResult]: Stem: 219#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(47);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 192#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~ret29, main_#t~ret30, main_#t~post31, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~alive1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~alive2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~alive3~0 := main_#t~nondet28;havoc main_#t~nondet28;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 193#L207 assume !(0 == ~r1~0);init_~tmp~0 := 0; 169#L207-1 init_#res := init_~tmp~0; 234#L276 main_#t~ret29 := init_#res;main_~i2~0 := main_#t~ret29;havoc main_#t~ret29; 225#L323 assume !(0 == main_~i2~0); 226#L323-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 230#L331-2 [2020-10-20 08:08:39,818 INFO L796 eck$LassoCheckResult]: Loop: 230#L331-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 232#L104 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 233#L108 assume !(node1_~m1~0 != ~nomsg~0); 176#L108-1 ~mode1~0 := 0; 210#L104-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 220#L139 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 202#L142 assume !(node2_~m2~0 != ~nomsg~0); 199#L142-1 ~mode2~0 := 0; 186#L139-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 187#L173 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 206#L176 assume !(node3_~m3~0 != ~nomsg~0); 205#L176-1 ~mode3~0 := 0; 191#L173-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 236#L284 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 180#L284-1 check_#res := check_~tmp~1; 181#L296 main_#t~ret30 := check_#res;main_~c1~0 := main_#t~ret30;havoc main_#t~ret30;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 182#L355 assume !(0 == assert_~arg % 256); 208#L350 main_#t~post31 := main_~i2~0;main_~i2~0 := 1 + main_#t~post31;havoc main_#t~post31; 230#L331-2 [2020-10-20 08:08:39,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:39,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1898425768, now seen corresponding path program 1 times [2020-10-20 08:08:39,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:39,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981795643] [2020-10-20 08:08:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:39,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981795643] [2020-10-20 08:08:39,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:39,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:39,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914003807] [2020-10-20 08:08:39,889 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:08:39,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:39,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1437480252, now seen corresponding path program 2 times [2020-10-20 08:08:39,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:39,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432867935] [2020-10-20 08:08:39,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:39,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432867935] [2020-10-20 08:08:39,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:39,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:39,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956612303] [2020-10-20 08:08:39,981 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:08:39,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:39,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:08:39,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:08:39,982 INFO L87 Difference]: Start difference. First operand 73 states and 120 transitions. cyclomatic complexity: 48 Second operand 5 states. [2020-10-20 08:08:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:40,096 INFO L93 Difference]: Finished difference Result 126 states and 202 transitions. [2020-10-20 08:08:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:08:40,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 202 transitions. [2020-10-20 08:08:40,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-10-20 08:08:40,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 123 states and 183 transitions. [2020-10-20 08:08:40,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2020-10-20 08:08:40,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2020-10-20 08:08:40,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 123 states and 183 transitions. [2020-10-20 08:08:40,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:40,106 INFO L691 BuchiCegarLoop]: Abstraction has 123 states and 183 transitions. [2020-10-20 08:08:40,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states and 183 transitions. [2020-10-20 08:08:40,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 73. [2020-10-20 08:08:40,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 08:08:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 103 transitions. [2020-10-20 08:08:40,113 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 103 transitions. [2020-10-20 08:08:40,114 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 103 transitions. [2020-10-20 08:08:40,114 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:08:40,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 103 transitions. [2020-10-20 08:08:40,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-10-20 08:08:40,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:40,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:40,118 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:40,118 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:40,119 INFO L794 eck$LassoCheckResult]: Stem: 433#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(47);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 405#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~ret29, main_#t~ret30, main_#t~post31, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~alive1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~alive2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~alive3~0 := main_#t~nondet28;havoc main_#t~nondet28;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 406#L207 assume 0 == ~r1~0; 382#L208 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 >= 1; 383#L209 assume ~id1~0 >= 0; 424#L210 assume 0 == ~st1~0; 443#L211 assume ~send1~0 == ~id1~0; 401#L212 assume 0 == ~mode1~0 % 256; 402#L213 assume ~id2~0 >= 0; 449#L214 assume 0 == ~st2~0; 410#L215 assume ~send2~0 == ~id2~0; 411#L216 assume 0 == ~mode2~0 % 256; 436#L217 assume ~id3~0 >= 0; 451#L218 assume 0 == ~st3~0; 384#L219 assume ~send3~0 == ~id3~0; 385#L220 assume 0 == ~mode3~0 % 256; 425#L221 assume ~id1~0 != ~id2~0; 445#L222 assume ~id1~0 != ~id3~0; 430#L223 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 431#L207-1 init_#res := init_~tmp~0; 448#L276 main_#t~ret29 := init_#res;main_~i2~0 := main_#t~ret29;havoc main_#t~ret29; 439#L323 assume !(0 == main_~i2~0); 440#L323-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 444#L331-2 [2020-10-20 08:08:40,119 INFO L796 eck$LassoCheckResult]: Loop: 444#L331-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 446#L104 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 447#L108 assume !(node1_~m1~0 != ~nomsg~0); 389#L108-1 ~mode1~0 := 0; 423#L104-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 434#L139 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 415#L142 assume !(node2_~m2~0 != ~nomsg~0); 414#L142-1 ~mode2~0 := 0; 399#L139-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 400#L173 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 419#L176 assume !(node3_~m3~0 != ~nomsg~0); 418#L176-1 ~mode3~0 := 0; 404#L173-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 450#L284 assume !(~st1~0 + ~st2~0 + ~st3~0 <= 1);check_~tmp~1 := 0; 393#L284-1 check_#res := check_~tmp~1; 394#L296 main_#t~ret30 := check_#res;main_~c1~0 := main_#t~ret30;havoc main_#t~ret30;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 395#L355 assume !(0 == assert_~arg % 256); 421#L350 main_#t~post31 := main_~i2~0;main_~i2~0 := 1 + main_#t~post31;havoc main_#t~post31; 444#L331-2 [2020-10-20 08:08:40,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:40,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1524872798, now seen corresponding path program 1 times [2020-10-20 08:08:40,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:40,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611080713] [2020-10-20 08:08:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:40,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:40,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:40,218 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:08:40,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:40,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1437480252, now seen corresponding path program 3 times [2020-10-20 08:08:40,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:40,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271712833] [2020-10-20 08:08:40,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:40,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271712833] [2020-10-20 08:08:40,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:40,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:40,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082501065] [2020-10-20 08:08:40,312 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:08:40,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:40,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:08:40,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:08:40,313 INFO L87 Difference]: Start difference. First operand 73 states and 103 transitions. cyclomatic complexity: 31 Second operand 5 states. [2020-10-20 08:08:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:40,366 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2020-10-20 08:08:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:08:40,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2020-10-20 08:08:40,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-10-20 08:08:40,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 73 states and 101 transitions. [2020-10-20 08:08:40,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2020-10-20 08:08:40,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2020-10-20 08:08:40,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 101 transitions. [2020-10-20 08:08:40,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:40,371 INFO L691 BuchiCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-20 08:08:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 101 transitions. [2020-10-20 08:08:40,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 08:08:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 08:08:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-10-20 08:08:40,377 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-20 08:08:40,377 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-20 08:08:40,377 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:08:40,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 101 transitions. [2020-10-20 08:08:40,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 50 [2020-10-20 08:08:40,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:40,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:40,380 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:40,381 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:40,381 INFO L794 eck$LassoCheckResult]: Stem: 594#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(47);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset]; 566#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~ret29, main_#t~ret30, main_#t~post31, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet13;havoc main_#t~nondet13;~id1~0 := main_#t~nondet14;havoc main_#t~nondet14;~st1~0 := main_#t~nondet15;havoc main_#t~nondet15;~send1~0 := main_#t~nondet16;havoc main_#t~nondet16;~mode1~0 := main_#t~nondet17;havoc main_#t~nondet17;~alive1~0 := main_#t~nondet18;havoc main_#t~nondet18;~id2~0 := main_#t~nondet19;havoc main_#t~nondet19;~st2~0 := main_#t~nondet20;havoc main_#t~nondet20;~send2~0 := main_#t~nondet21;havoc main_#t~nondet21;~mode2~0 := main_#t~nondet22;havoc main_#t~nondet22;~alive2~0 := main_#t~nondet23;havoc main_#t~nondet23;~id3~0 := main_#t~nondet24;havoc main_#t~nondet24;~st3~0 := main_#t~nondet25;havoc main_#t~nondet25;~send3~0 := main_#t~nondet26;havoc main_#t~nondet26;~mode3~0 := main_#t~nondet27;havoc main_#t~nondet27;~alive3~0 := main_#t~nondet28;havoc main_#t~nondet28;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 567#L207 assume 0 == ~r1~0; 543#L208 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 >= 1; 544#L209 assume ~id1~0 >= 0; 585#L210 assume 0 == ~st1~0; 604#L211 assume ~send1~0 == ~id1~0; 562#L212 assume 0 == ~mode1~0 % 256; 563#L213 assume ~id2~0 >= 0; 610#L214 assume 0 == ~st2~0; 571#L215 assume ~send2~0 == ~id2~0; 572#L216 assume 0 == ~mode2~0 % 256; 597#L217 assume ~id3~0 >= 0; 612#L218 assume 0 == ~st3~0; 545#L219 assume ~send3~0 == ~id3~0; 546#L220 assume 0 == ~mode3~0 % 256; 586#L221 assume ~id1~0 != ~id2~0; 606#L222 assume ~id1~0 != ~id3~0; 591#L223 assume ~id2~0 != ~id3~0;init_~tmp~0 := 1; 592#L207-1 init_#res := init_~tmp~0; 609#L276 main_#t~ret29 := init_#res;main_~i2~0 := main_#t~ret29;havoc main_#t~ret29; 600#L323 assume !(0 == main_~i2~0); 601#L323-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;main_~i2~0 := 0; 605#L331-2 [2020-10-20 08:08:40,381 INFO L796 eck$LassoCheckResult]: Loop: 605#L331-2 assume !!(main_~i2~0 < 6);havoc node1_#t~ite7, node1_#t~ite8, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 607#L104 assume 0 != ~mode1~0 % 256;~r1~0 := (if (1 + ~r1~0) % 256 <= 127 then (1 + ~r1~0) % 256 else (1 + ~r1~0) % 256 - 256);node1_~m1~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 608#L108 assume !(node1_~m1~0 != ~nomsg~0); 550#L108-1 ~mode1~0 := 0; 584#L104-2 havoc node2_#t~ite9, node2_#t~ite10, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 595#L139 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 576#L142 assume !(node2_~m2~0 != ~nomsg~0); 575#L142-1 ~mode2~0 := 0; 560#L139-2 havoc node3_#t~ite11, node3_#t~ite12, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 561#L173 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 580#L176 assume !(node3_~m3~0 != ~nomsg~0); 578#L176-1 ~mode3~0 := 0; 565#L173-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 611#L284 assume ~st1~0 + ~st2~0 + ~st3~0 <= 1; 551#L285 assume ~r1~0 < 3;check_~tmp~1 := 1; 553#L284-1 check_#res := check_~tmp~1; 555#L296 main_#t~ret30 := check_#res;main_~c1~0 := main_#t~ret30;havoc main_#t~ret30;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 556#L355 assume !(0 == assert_~arg % 256); 582#L350 main_#t~post31 := main_~i2~0;main_~i2~0 := 1 + main_#t~post31;havoc main_#t~post31; 605#L331-2 [2020-10-20 08:08:40,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:40,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1524872798, now seen corresponding path program 2 times [2020-10-20 08:08:40,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:40,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205722045] [2020-10-20 08:08:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:40,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:40,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:40,442 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:08:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:40,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1995544032, now seen corresponding path program 1 times [2020-10-20 08:08:40,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:40,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577623110] [2020-10-20 08:08:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:40,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:40,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:40,470 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:08:40,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash 964547747, now seen corresponding path program 1 times [2020-10-20 08:08:40,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:40,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167767531] [2020-10-20 08:08:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:40,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167767531] [2020-10-20 08:08:40,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:40,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:08:40,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176272858] [2020-10-20 08:08:40,819 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-10-20 08:08:41,112 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-20 08:08:41,125 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:08:41,126 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:08:41,126 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:08:41,127 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:08:41,127 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 08:08:41,127 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:41,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:08:41,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:08:41,128 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-10-20 08:08:41,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:08:41,128 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:08:41,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,807 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:08:41,808 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:41,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 08:08:41,830 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:41,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 08:08:41,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 08:08:41,894 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 08:08:41,896 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:08:41,896 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:08:41,896 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:08:41,896 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:08:41,896 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:08:41,896 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:41,897 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:08:41,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:08:41,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_Iteration4_Loop [2020-10-20 08:08:41,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:08:41,900 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:08:41,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:41,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:42,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:42,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:42,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:42,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:42,553 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:08:42,559 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:42,570 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 [2020-10-20 08:08:42,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:42,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:42,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:42,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:42,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:42,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:42,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:42,584 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:08:42,591 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 08:08:42,592 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:08:42,621 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:08:42,621 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 08:08:42,622 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:08:42,623 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 11 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:42,655 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 08:08:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:42,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:08:42,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:08:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:42,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:08:42,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:08:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:42,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 08:08:42,866 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 101 transitions. cyclomatic complexity: 29 Second operand 3 states. [2020-10-20 08:08:42,991 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 101 transitions. cyclomatic complexity: 29. Second operand 3 states. Result 123 states and 180 transitions. Complement of second has 4 states. [2020-10-20 08:08:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 08:08:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:08:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2020-10-20 08:08:42,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 101 transitions. Stem has 23 letters. Loop has 19 letters. [2020-10-20 08:08:42,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:08:42,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 101 transitions. Stem has 42 letters. Loop has 19 letters. [2020-10-20 08:08:42,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:08:42,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 101 transitions. Stem has 23 letters. Loop has 38 letters. [2020-10-20 08:08:42,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:08:43,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 180 transitions. [2020-10-20 08:08:43,002 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:08:43,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 0 states and 0 transitions. [2020-10-20 08:08:43,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:08:43,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:08:43,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:08:43,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:43,003 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:43,004 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:43,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:43,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:08:43,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:08:43,005 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-20 08:08:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:43,005 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-20 08:08:43,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 08:08:43,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-20 08:08:43,006 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:08:43,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 08:08:43,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:08:43,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:08:43,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:08:43,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:43,007 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:43,008 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:43,008 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:43,008 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:08:43,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:08:43,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:08:43,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:08:43,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:08:43 BoogieIcfgContainer [2020-10-20 08:08:43,017 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:08:43,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:08:43,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:08:43,018 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:08:43,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:08:39" (3/4) ... [2020-10-20 08:08:43,023 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:08:43,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:08:43,026 INFO L168 Benchmark]: Toolchain (without parser) took 5102.37 ms. Allocated memory was 36.7 MB in the beginning and 75.5 MB in the end (delta: 38.8 MB). Free memory was 11.0 MB in the beginning and 29.5 MB in the end (delta: -18.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,026 INFO L168 Benchmark]: CDTParser took 1.35 ms. Allocated memory is still 36.2 MB. Free memory is still 14.9 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 08:08:43,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.29 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 10.2 MB in the beginning and 22.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.49 ms. Allocated memory is still 44.0 MB. Free memory was 22.6 MB in the beginning and 20.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,029 INFO L168 Benchmark]: Boogie Preprocessor took 35.94 ms. Allocated memory is still 44.0 MB. Free memory was 20.1 MB in the beginning and 18.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,030 INFO L168 Benchmark]: RCFGBuilder took 654.33 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 18.2 MB in the beginning and 17.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,031 INFO L168 Benchmark]: BuchiAutomizer took 3780.10 ms. Allocated memory was 46.1 MB in the beginning and 75.5 MB in the end (delta: 29.4 MB). Free memory was 17.2 MB in the beginning and 30.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,032 INFO L168 Benchmark]: Witness Printer took 5.70 ms. Allocated memory is still 75.5 MB. Free memory was 30.4 MB in the beginning and 29.5 MB in the end (delta: 882.0 kB). Peak memory consumption was 882.0 kB. Max. memory is 14.3 GB. [2020-10-20 08:08:43,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35 ms. Allocated memory is still 36.2 MB. Free memory is still 14.9 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 557.29 ms. Allocated memory was 36.7 MB in the beginning and 44.0 MB in the end (delta: 7.3 MB). Free memory was 10.2 MB in the beginning and 22.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 58.49 ms. Allocated memory is still 44.0 MB. Free memory was 22.6 MB in the beginning and 20.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.94 ms. Allocated memory is still 44.0 MB. Free memory was 20.1 MB in the beginning and 18.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 654.33 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 18.2 MB in the beginning and 17.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3780.10 ms. Allocated memory was 46.1 MB in the beginning and 75.5 MB in the end (delta: 29.4 MB). Free memory was 17.2 MB in the beginning and 30.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. * Witness Printer took 5.70 ms. Allocated memory is still 75.5 MB. Free memory was 30.4 MB in the beginning and 29.5 MB in the end (delta: 882.0 kB). Peak memory consumption was 882.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 11 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 50 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 73 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 441 SDtfs, 260 SDslu, 699 SDs, 0 SdLazy, 35 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI2 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital123 mio100 ax129 hnf106 lsp22 ukn100 mio100 lsp100 div168 bol100 ite100 ukn100 eq153 hnf75 smp100 dnf104 smp96 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 62ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...